Class   208	MINERAL OILS: PROCESSES AND PRODUCTS
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1

SYNTHETIC DRYING OILS

2

PHENOLIC OR TOXIC OILS

3

OXIDATION OF MINERAL OILS

4

. (1 indent ) To form asphalts, tars or pitches

5

.. (2 indent ) In presence of soild contact material

6

.. (2 indent ) Tar, pitch, or asphalt feed

7

. (1 indent ) With cracking

390

TAR SAND TREATMENT WITH LIQUID

391

. (1 indent ) Inorganic (only) liquid

400

BY TREATMENT OF SOLID MINERAL, E.G., COAL LIQUEFACTION, ETC.

401

. (1 indent ) Including a test or measurement

402

. (1 indent ) Using electrical, magnetic or wave energy

403

. (1 indent ) Chemical modification of solids before hydrogenation

404

. (1 indent ) Using molten additive, e.g., heat carrier, etc.

405

.. (2 indent ) Molten catalyst

406

... (3 indent ) Halide-containing

407

. (1 indent ) Specified agitation or circulation in gas contact zone

408

.. (2 indent ) Gas includes hydrogen

409

.. (2 indent ) Vertical gas upflow, e.g., fluidization, etc.

410

... (3 indent ) Using solid heat carrier

411

.. (2 indent ) Using solid heat carrier

412

. (1 indent ) Plural hydrogenation steps

413

.. (2 indent ) Solid catalyst in at least one step

414

. (1 indent ) With hydrogen production from water

415

. (1 indent ) Including contact of feed with liquid produced in the process, i.e., recycle

416

.. (2 indent ) With discrete hydrogenation of recycle stream

417

.. (2 indent ) Recycle of bottoms (resid)

418

.. (2 indent ) Including contact with hydrogen gas

419

. (1 indent ) Using specifically added catalyst during hydrogenation

420

.. (2 indent ) Dissolved or suspended-thermally-decomposable catalyst, component or precursor

421

.. (2 indent ) Containing Group VI transition metal

422

... (3 indent ) And Group VIII metal

423

.. (2 indent ) Containing Group VIII metal

424

. (1 indent ) Specified procedure to improve separation of solids from liquid product

425

.. (2 indent ) Including centrifugation, filtering, flotation or vibration

426

. (1 indent ) Including agglomeration, comminution or size-classification of solids

427

. (1 indent ) Including burning of feed or product

428

. (1 indent ) Including contact with extraneous additive other than hydrogen, e.g., solvent, etc.

429

.. (2 indent ) Distinct addition zones

430

.. (2 indent ) Contact with additive, followed by chemical conversion

431

.. (2 indent ) Specified hydrogen-donor solvent

432

.. (2 indent ) With specified circulation procedure in contact zone

433

.. (2 indent ) Simultaneous treatment with gaseous additive and liquid solvent

434

.. (2 indent ) Additive is petroleum or fraction from petroleum refining

435

.. (2 indent ) Additive is specified catalyst or liquid solvent or dispersant

12

COLORNG TREATMENTS (INCLUDES FLUORESCENCE)

13

TREATMENT OF REFINING SLUDGE

14

PRODUCTS AND COMPOSITIONS

15

. (1 indent ) Fuels

16

.. (2 indent ) Gasolines

17

... (3 indent ) Admixtures

18

. (1 indent ) Lubricating oils

19

.. (2 indent ) Admixtures

20

. (1 indent ) Waxes

21

.. (2 indent ) Admixtures

22

. (1 indent ) Asphalts, tars, pitches and resins

23

.. (2 indent ) Admixtures

24

PARAFFIN WAX; TREATMENT OR RECOVERY

25

. (1 indent ) With ureas

26

. (1 indent ) With sorption agents

27

. (1 indent ) Chemical treatment (refining or modification except mere solvent extraction)

28

. (1 indent ) Separation of paraffin from oil (e.g., dewaxing)

29

.. (2 indent ) Emulsion dewaxing

30

.. (2 indent ) Separation of residual oil from wax (i.e., deoiling)

31

... (3 indent ) With solvent

32

... (3 indent ) Sweating

33

.. (2 indent ) Solvent dewaxing

34

... (3 indent ) With deasphalting treatment

35

... (3 indent ) With chilling by evaporation of solvent

36

... (3 indent ) With nondewaxing solvent extraction of oil

37

.. (2 indent ) Chilling

38

... (3 indent ) With filtering

39

ASPHALTS, TARS, PITCHES AND RESINS; MAKING, TREATING AND RECOVERY

40

. (1 indent ) By chemical conversion of oil

41

. (1 indent ) By distillation

42

.. (2 indent ) Tar feed

43

... (3 indent ) By contact with hot gases

44

. (1 indent ) Chemical modification of asphalt, tar, pitch or resin

45

. (1 indent ) Solvent extraction

46

CHEMICAL CONVERSION OF HYDROCARBONS

47

. (1 indent ) With prevention of corrosion or erosion in system

48R

. (1 indent ) With prevention or removal of deleterious carbon accumulations or equipment

48Q

.. (2 indent ) Quench

48AA

.. (2 indent ) Antifoulant additive

49

. (1 indent ) Plural serial stages of chemical conversion

50

.. (2 indent ) Coking in at least one stage

51

... (3 indent ) With reforming

52R

... (3 indent ) With both catalytic and thermal cracking

52CT

.... (4 indent ) Catalyst treatment to remove metal contaminants

53

... (3 indent ) First stage is coking

54

.... (4 indent ) Second stage is cracking

55

....• (5 indent ) Catalytic cracking

56

.. (2 indent ) Hydrogen donor diluent cyclic processes

57

.. (2 indent ) First stage is an hydrogenation (saturation)

58

.. (2 indent ) First stage is hydrocracking (includes hydro-desulfurization under cracking conditions)

59

... (3 indent ) Hydrocracking in all stages

60

... (3 indent ) With subsequent reforming

61

... (3 indent ) With subsequent thermal or catalytic cracking

62

.. (2 indent ) First stage is reforming

63

... (3 indent ) Reforming in all stages

64

.... (4 indent ) Catalyst in at least one stage

65

....• (5 indent ) Noble metal containing catalyst

66

... (3 indent ) Catalytic

67

.. (2 indent ) First stage is thermal or catalytic cracking

68

... (3 indent ) With subsequent hydrocracking

69

... (3 indent ) With subsequent reforming

70

.... (4 indent ) Catalytic reforming

71

... (3 indent ) With subsequent polymerization

72

... (3 indent ) Cracking in all stages

73

.... (4 indent ) Catalyst in at least one stage

74

....• (5 indent ) Catalyst in multiple stages

75

.... (4 indent ) With cracking of total product from first stage

76

.... (4 indent ) With cracking of the first stage bottoms

77

.... (4 indent ) With cracking of the first stage intermediate fraction

78

. (1 indent ) Plural parallel stages of chemical conversion

79

.. (2 indent ) At least one stage is reforming

80

.. (2 indent ) Split feed

81

. (1 indent ) With contacting vapor porducts with liquid feed (i.e., product scrubbing and feed stripping)

82

.. (2 indent ) Only selected fractions of product or feed are contacted

83

.. (2 indent ) With subsequent fractionation

84

.. (2 indent ) With added material (to scrubbing-stripping stage)

85

. (1 indent ) With preliminary treatment of feed

86

.. (2 indent ) Deasphalting

87

.. (2 indent ) Solvent extraction

88

.. (2 indent ) Refining

89

... (3 indent ) With hydrogen

90

... (3 indent ) With acids

91

... (3 indent ) With solid absorbents

92

.. (2 indent ) Distillation

93

... (3 indent ) With blending of products of distillation with each other or with converted products

94

... (3 indent ) Plural stages of distillation

95

. (1 indent ) With subsequent treatment of products

96

.. (2 indent ) Solvent extraction

97

.. (2 indent ) Refining

98

... (3 indent ) With acids

99

... (3 indent ) With solid adsorbents

100

.. (2 indent ) Separation of vapors and liquid products

101

... (3 indent ) With absorption with liquid

102

... (3 indent ) With additional separation of liquid products from primary separation zone

103

... (3 indent ) With additional separation of vapor products

104

.... (4 indent ) With distillation of second stage liquid

105

.... (4 indent ) With condensation of second stage vapors

106

. (1 indent ) Cracking

107

.. (2 indent ) Hydrogenative

108

... (3 indent ) Catalytic

109

.... (4 indent ) Silica or silicate containing catalyst

110

....• (5 indent ) With metal or metal oxide

111.01

....•. (6 indent ) With group III metal, rare earth metal, or metal oxide (i.e., Sc, Y, Al, Ga, ln, Tl, metal of atomic number 57-71, or oxide thereof)

111.05

....•.. (7 indent ) With group VII metal or metal oxide (i.e., Mn, Tc, Re, or oxide thereof)

111.1

....•.. (7 indent ) With group IV metal or metal oxide (i.e., Ti, Zr, Hf, Ge, Sn, Pb, or oxide thereof)

111.15

....•.. (7 indent ) With group I metal or metal oxide (i.e., alkali metal, Ag, Au, Cu, or oxide thereof)

111.2

....•.. (7 indent ) With group V metal or metal oxide (i.e., V, Nb, Ta, As, Sb, Bi, or oxide thereof)

111.25

....•.. (7 indent ) With group II metal or metal oxide (i.e., alkaline earth metal, Be, Mg, Zn, Cd, Hg, or oxide thereof)

111.3

....•.. (7 indent ) With group VI metal or metal oxide (i.e., Cr, Mo, W, Po, or oxide thereof)

111.35

....•.. (7 indent ) With group VIII metal or metal oxide (i.e., iron, or platinum group metal, or oxide thereof)

112

.... (4 indent ) Metal or metal oxide catalyst

113

.. (2 indent ) Catalytic

114

... (3 indent ) Phosphorus, boron or nitrogen containing catalyst

115

... (3 indent ) Halogen containing catalyst

116

.... (4 indent ) Metal halide

117

....• (5 indent ) Group III metal halide

118

... (3 indent ) Silica or silicate containing catalyst

119

.... (4 indent ) With metal or metal oxide

120.01

....• (5 indent ) With group III metal, rare earth metal, or metal oxide (i.e., Sc, Y, Al, Ga, In, Tl, metal of atomic number 57-71 or oxide thereof)

120.05

....•. (6 indent ) With group VII metal or metal oxide (i.e., Mn, Tc, Re, or oxide thereof)

120.1

....•. (6 indent ) With group IV metal or metal oxide (i.e., Ti, Zr, Hf, Ge, Sn, Pb, or oxide thereof)

120.15

....•. (6 indent ) With group I metal or metal oxide (i.e., alkali metal, Ag, Au, Cu, or oxide thereof)

120.2

....•. (6 indent ) With group V metal or metal oxide (i.e., V, Nb, Ta, As, Sb, Bi, or oxide thereof)

120.25

....•. (6 indent ) With group II metal or metal oxide (i.e., alkaline earth metal, Be, Mg, Zn, Cd, Hg, or oxide thereof)

120.3

....•. (6 indent ) With group VI metal or metal oxide (i.e., Cr, Mo, W, Po, or oxide thereof)

120.35

....•. (6 indent ) With group VIII metal or metal oxide (i.e., iron or platinum group metal, or oxide thereof)

121

... (3 indent ) Metal or metal oxide containing catalyst

122

.... (4 indent ) Group III metal or oxide

123

....• (5 indent ) With Group VI metal or oxide

124

....• (5 indent ) With Group VIII metal or oxide

125

.. (2 indent ) With nonreactive material

126

... (3 indent ) Solids

127

.... (4 indent ) Suspension system

128

... (3 indent ) Vapors

129

.... (4 indent ) Combustion gases

130

.... (4 indent ) Steam

131

.. (2 indent ) Soaking

132

.. (2 indent ) With heating in tubular confined stream

133

. (1 indent ) Reforming (includes dehydrogenation, isomerization, cyclization, aromatization, alkylation, dealkylation reactions)

134

.. (2 indent ) Catalytic

135

... (3 indent ) With Group III metal or metal oxide containing catalyst

136

.... (4 indent ) With Group VI metal or metal oxide

137

.... (4 indent ) With Group VIII metal or metal oxide

138

....• (5 indent ) Noble metal or oxide thereof

139

....•. (6 indent ) With halogen containing additive

140

....•. (6 indent ) With recovery or reactivation of catalyst

141

... (3 indent ) Feed of specific composition

142

. (1 indent ) Hydrogenation (saturation)

143

.. (2 indent ) Catalytic

144

... (3 indent ) Feed of specific composition

145

.... (4 indent ) With added source of hydrogen (includes hydrogen donor)

146

. (1 indent ) Solids contacting and mixing

147

.. (2 indent ) Separate contiguous, dissimilar function, contacting zones

148

.. (2 indent ) Combined gravitating bed and suspension zones

149

.. (2 indent ) Solids of dissimilar composition

150

.. (2 indent ) Purging

151

... (3 indent ) Plural stages

152

.. (2 indent ) Solids replenishment, or selective discard

153

.. (2 indent ) Suspension system

154

... (3 indent ) Start-up and shut down procedures

155

... (3 indent ) Plural zones of similar function

156

.... (4 indent ) Solids and contacting fluids are both in series

157

... (3 indent ) Liquid feed

158

... (3 indent ) With augmented turbulence (in addition to normal mixing in bed)

159

... (3 indent ) With temperature regulation

160

.... (4 indent ) By solids circulation to external heat exchange and return to same zone

161

... (3 indent ) Separation of entrained fines from effluents

162

.... (4 indent ) In presence of a liquid

163

... (3 indent ) Fluidized dense bed

164

.... (4 indent ) Solids transferring

165

.. (2 indent ) Gravitating compact beds

166

... (3 indent ) Liquid feeding

167

.... (4 indent ) Solids curtain type

168

... (3 indent ) Solids-vapor disengagement

169

... (3 indent ) Plural zones of similar function (same chamber)

170

... (3 indent ) Size stratification prevention

171

... (3 indent ) Uniform solids withdrawal

172

... (3 indent ) Preheating or quenching with solids

173

... (3 indent ) Solids transferring

174

.... (4 indent ) By pneumatic lifting

175

....• (5 indent ) Compact type

176

.. (2 indent ) Solids moving processes

177

REFINING

178

. (1 indent ) With reagent feed control

179

. (1 indent ) Purifying used oil

180

.. (2 indent ) With added organic material

181

.. (2 indent ) Plural treating agents (sequential or simultaneous)

182

... (3 indent ) One is a solid contact material

183

.... (4 indent ) With acid or alkali

184

.. (2 indent ) Distillation or degassing

185

... (3 indent ) With gaseous treating agent

186

... (3 indent ) With solid-liquid separation

187

. (1 indent ) Water removal (dehydration)

188

.. (2 indent ) With treating agent

189

. (1 indent ) Sweetening

190

.. (2 indent ) With hypochlorites

191

.. (2 indent ) With copper compounds

192

... (3 indent ) With preliminary treatment of oil

193

... (3 indent ) With subsequent treatment of the sweet oil

194

.... (4 indent ) Separation or recovery of copper compound

195

... (3 indent ) Copper chloride and free oxygen containing gas

196

.. (2 indent ) With peroxides

197

.. (2 indent ) With lead compounds

198

... (3 indent ) Lead sulfide

199

... (3 indent ) Sodium plumbite

200

.... (4 indent ) With preliminary treatment of the oil

201

.... (4 indent ) With subsequent treatment of the sweet oil

202

....• (5 indent ) Organic treating agent

203

.. (2 indent ) With alkali metal hydroxide or carbonate

204

... (3 indent ) With added oxygen containing organic compound

205

.... (4 indent ) Acyclic alcohol

206

... (3 indent ) With added nitrogen containing compound

207

.. (2 indent ) Nitrogen containing compound

208R

. (1 indent ) Sulfur removal (free or combined sulfur)

209

.. (2 indent ) With hydrogen

210

... (3 indent ) Plural stage treatments with hydrogen

211

... (3 indent ) With preliminary treatment of feed

212

... (3 indent ) With subsequent treatment of product

213

... (3 indent ) With solid catalyst or absorbent

214

.... (4 indent ) With hydrogen yielding material (H donor)

215

.... (4 indent ) With heavy metal sulfide

216R

.... (4 indent ) With group VI metal or compound

216PP

....• (5 indent ) With specific porosity or pore volume

217

.... (4 indent ) With Group VIII metal or compound

218

.. (2 indent ) Split treatment

219

.. (2 indent ) With acids

220

... (3 indent ) Plural stages of sulfur removal

221

... (3 indent ) With preliminary treatment of feed

222

... (3 indent ) With subsequent treatment of product

223

... (3 indent ) Inorganic acid

224

.... (4 indent ) Sulfuric acid

225

.... (4 indent ) Hydrochloric acid

226

.. (2 indent ) With alkali or alkali earth metal compound (except clays)

227

... (3 indent ) Plural stages of sulfur removal

228

... (3 indent ) With preliminary treatment of feed

229

... (3 indent ) With subsequent treatment of product

230

... (3 indent ) Alkali metal compound

231

.... (4 indent ) With added oxygen containing organic compound

232

....• (5 indent ) Alcohol containing

233

....•. (6 indent ) With other organic compound

234

....• (5 indent ) With regeneration of treating agent

235

.... (4 indent ) With regeneration of treating agent

236

.. (2 indent ) With nitrogen containing treating reagent

237

.. (2 indent ) With organic reagent

238

... (3 indent ) Hydrocarbon containing

239

... (3 indent ) Heavy metal soap containing

240

... (3 indent ) Oxygen containing

241

.. (2 indent ) With free halogen or nonmetal halide containing reagent

242

.. (2 indent ) With sulfur oxides

243

.. (2 indent ) With Group VI metal or compound

244

.. (2 indent ) With Group VIII metal or compound

245

.. (2 indent ) With silicon or compound thereof

246

.. (2 indent ) With Group IB metal or compound

247

.. (2 indent ) With Group IIB metal or compound

248

.. (2 indent ) With Group III metal or compound

249

.. (2 indent ) With Group IV, V, VII metal or compound

250

.. (2 indent ) Solids contacting and mixing

208M

.. (2 indent ) Using free alkali metal

251R

. (1 indent ) Metal contaminant removal

252

.. (2 indent ) With acid

253

.. (2 indent ) With metal or metal compound

251H

.. (2 indent ) Employing hydrogen

254R

. (1 indent ) Nitrogen contaminant removal

254H

.. (2 indent ) Employing hydrogen

255

. (1 indent ) Gum or gum former removal

256

.. (2 indent ) With acid

257

.. (2 indent ) With metal or metal compound

258

... (3 indent ) Alkali metal

259

... (3 indent ) Alkali or alkali earth metal compound (except clays)

260

... (3 indent ) Clay type or alumina

261

.... (4 indent ) Vapor phase treatment

262.1

. (1 indent ) Halogen contaminant removal

262.5

.. (2 indent ) Polychorinated biphenyl (PCB)

263

. (1 indent ) Organic acid or phenol contaminant removal

264

. (1 indent ) With hydrogen

265

. (1 indent ) With acids

266

.. (2 indent ) Sulfuric acid

267

... (3 indent ) With fluid rotation or agitation

268

... (3 indent ) White oil making

269

... (3 indent ) Split treatment

270

... (3 indent ) Plural stages of acid treatment

271

... (3 indent ) With preliminary treatment of the oil

272

.... (4 indent ) Fractionation

273

... (3 indent ) With subsequent treatment of the oil

274

.... (4 indent ) Organic treating agent

275

.... (4 indent ) Solid absorbent

276

... (3 indent ) With nonwater additive

277

.... (4 indent ) Organic compound

278

.... (4 indent ) Solid contact material

279

.. (2 indent ) Phosphorus containing acid

280

.. (2 indent ) Halogen containing acid

281

... (3 indent ) Hydrochloric acid

282

.. (2 indent ) Organic acid

283

. (1 indent ) With alkali or alkali earth metal compound (except clays)

284

.. (2 indent ) Alkali metal compound

285

... (3 indent ) With preliminary treatment of the oil

286

... (3 indent ) With subsequent treatment of the oil

287

... (3 indent ) With solid carrier

288

... (3 indent ) With added material

289

. (1 indent ) With nitrogen containing compound

290

. (1 indent ) With organic compound

291

.. (2 indent ) Oxygen containing

292

. (1 indent ) With boron, phosphorus, arsenic, antimony or bismuth containing treating agent

293

. (1 indent ) With sulfur containing treating agent

294

. (1 indent ) With free metal

295

. (1 indent ) With Group IV, V, VI, VII or VIII metal compound

296

. (1 indent ) With Group IB or IIB metal compound

297

. (1 indent ) With Group III metal compound (except clays)

298

. (1 indent ) With liquid treating agent (includes slurries of solids)

299

. (1 indent ) With solid catalyst or absorbent

300

.. (2 indent ) Of particular physical shape or structure

301

.. (2 indent ) With preliminary treatment of the oil

302

.. (2 indent ) With subsequent treatment of the oil

303

.. (2 indent ) Plural treating stages

304

.. (2 indent ) Processes including downward movement of particles

305

.. (2 indent ) Solids rehabilitation

306

.. (2 indent ) Composite or plural treating agents

307

.. (2 indent ) Silicon or carbon containing treating agent

308

FRACTIONATION

309

. (1 indent ) Deasphalting

310R

. (1 indent ) Adsorption

310Z

.. (2 indent ) Zeolite adsorbent

311

. (1 indent ) Liquid extraction with solvents

312

.. (2 indent ) With blending of separated fractions with each other or with feed

313

.. (2 indent ) Extractive distillation

314

.. (2 indent ) Plural stages with different oil miscible solvents

315

... (3 indent ) With recycle of product of later extraction to earlier extraction stage

316

... (3 indent ) Difference is mere change in proportions of solvents

317

.. (2 indent ) Counter current multistage extraction

318

.. (2 indent ) With recycle of oil

319

.. (2 indent ) With pressure variation

320

.. (2 indent ) With temperature gradient in extraction zone or between extraction zones

321

.. (2 indent ) With solvent rehabilitation

322

.. (2 indent ) Organic solvent containing

323

... (3 indent ) With added solvent or solvent modifier

324

.... (4 indent ) Inorganic

325

... (3 indent ) Heterocyclic

326

.... (4 indent ) Hetero-N-containing

327

.... (4 indent ) Furfural and derivatives

328

... (3 indent ) Nonoxo carbonylic

329

.... (4 indent ) Carboxylic esters

330

... (3 indent ) Nitrogen-containing solvent

331

.... (4 indent ) Amino compound

332

... (3 indent ) Oxo compound containing

333

... (3 indent ) Oxy compound

334

.... (4 indent ) Ethers

335

.... (4 indent ) Aromatic

336

... (3 indent ) Halogen containing

337

... (3 indent ) Hydrocarbon

338

.. (2 indent ) Liquid sulfur dioxide

339

.. (2 indent ) Liquid-liquid contacting

340

. (1 indent ) Recovery of mineral oil from natural or converted gases

341

.. (2 indent ) By absorption and vaporization

342

... (3 indent ) With fractional condensation prior to absorption

343

... (3 indent ) Indirect heat exchange between lean and rich absorbent

344

... (3 indent ) Plural absorption stages

345

.... (4 indent ) At least one stage is under pressure

346

... (3 indent ) Absorption stage is under pressure

347

. (1 indent ) Distillation

348

.. (2 indent ) With nonvapor compound added prior to or during vaporization

349

.. (2 indent ) With nonvaporization treatment of liquid condensate or residue

350

.. (2 indent ) Rectification

351

... (3 indent ) C1-C4 alkane removal

352

... (3 indent ) Flash vaporizaton

353

... (3 indent ) With heat recovery by indirect heat exchange

354

... (3 indent ) Plural or combined with additional distillation

355

.... (4 indent ) With product recycle between distillation zones

356

... (3 indent ) With added gas or vapor (e.g., steam)

357

... (3 indent ) Vacuum or pressure

358

... (3 indent ) With liquid product recycle to rectification zone

359

.. (2 indent ) Spraying

360

.. (2 indent ) Filming

361

.. (2 indent ) Flash vaporization

362

.. (2 indent ) With added gas or vapor

363

... (3 indent ) Steam

364

.. (2 indent ) Plural stages of vaporization

365

... (3 indent ) With heat recovery by indirect heat exchange

366

.. (2 indent ) Vacuum or pressure

367

.. (2 indent ) With agitation of distilland

368

.. (2 indent ) Condensatin by direct heat exchange

369

.. (2 indent ) Volatile treatment other than condensation

370

MISCELLANEOUS

	CROSS-REFERENCE ART COLLECTIONS

950

PROCESSING OF "FISCHER-TROPSCH" CRUDE

951

SOLID FEED TREATMENT WITH A GAS OTHER THAN AIR, HYDROGEN OR STEAM

952

SOLID FEED TREATMENT UNDER SUPERCRITICAL CONDITIONS

	FOREIGN ART COLLECTIONS

FOR000

CLASS-RELATED FOREIGN DOCUMENTS

	DIGESTS

DIG1

AUTOMATIC CONTROL

DIG2

MOLECULAR SIEVE

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