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Class   37EXCAVATING
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 [List of Pre Grant Publications for class 37 subclass 300][List of Patents for class 37 subclass 300]300 GRAVE DIGGER
[List of Pre Grant Publications for class 37 subclass 301][List of Patents for class 37 subclass 301]301 LAND CLEARER
 [List of Pre Grant Publications for class 37 subclass 302][List of Patents for class 37 subclass 302]302 Subclass 302 indent level is 1 Tree or stump remover
 [List of Pre Grant Publications for class 37 subclass 303][List of Patents for class 37 subclass 303]303 Subclass 303 indent level is 1 Stone remover
 [List of Pre Grant Publications for class 37 subclass 3][List of Patents for class 37 subclass 3]3 PEAT EXCAVATORS
[List of Pre Grant Publications for class 37 subclass 196][List of Patents for class 37 subclass 196]196 SNOW OR ICE REMOVING OR GROOMING BY PORTABLE DEVICE
 [List of Pre Grant Publications for class 37 subclass 197][List of Patents for class 37 subclass 197]197 Subclass 197 indent level is 1 Process
[List of Pre Grant Publications for class 37 subclass 198][List of Patents for class 37 subclass 198]198 Subclass 198 indent level is 1 Railway clearer
[List of Pre Grant Publications for class 37 subclass 199][List of Patents for class 37 subclass 199]199 Subclass 199 indent level is 2 With melter
 [List of Pre Grant Publications for class 37 subclass 201][List of Patents for class 37 subclass 201]201 Subclass 201 indent level is 2 Explosive
 [List of Pre Grant Publications for class 37 subclass 202][List of Patents for class 37 subclass 202]202 Subclass 202 indent level is 2 Fluid current conveyor
[List of Pre Grant Publications for class 37 subclass 203][List of Patents for class 37 subclass 203]203 Subclass 203 indent level is 2 For clearing single rail of set
 [List of Pre Grant Publications for class 37 subclass 208][List of Patents for class 37 subclass 208]208 Subclass 208 indent level is 2 With endless conveyor
[List of Pre Grant Publications for class 37 subclass 209][List of Patents for class 37 subclass 209]209 Subclass 209 indent level is 2 Having rotary excavating tool
[List of Pre Grant Publications for class 37 subclass 214][List of Patents for class 37 subclass 214]214 Subclass 214 indent level is 2 Having scraper blade
[List of Pre Grant Publications for class 37 subclass 219][List of Patents for class 37 subclass 219]219 Subclass 219 indent level is 1 Snow or ice surface groomer
 [List of Pre Grant Publications for class 37 subclass 220][List of Patents for class 37 subclass 220]220 Subclass 220 indent level is 2 Including rut cutter
[List of Pre Grant Publications for class 37 subclass 221][List of Patents for class 37 subclass 221]221 Subclass 221 indent level is 2 Having diverse tools
[List of Pre Grant Publications for class 37 subclass 223][List of Patents for class 37 subclass 223]223 Subclass 223 indent level is 2 Having rotary tool
[List of Pre Grant Publications for class 37 subclass 225][List of Patents for class 37 subclass 225]225 Subclass 225 indent level is 1 With compressor die
 [List of Pre Grant Publications for class 37 subclass 226][List of Patents for class 37 subclass 226]226 Subclass 226 indent level is 2 And heater
[List of Pre Grant Publications for class 37 subclass 227][List of Patents for class 37 subclass 227]227 Subclass 227 indent level is 1 With melter
[List of Pre Grant Publications for class 37 subclass 228][List of Patents for class 37 subclass 228]228 Subclass 228 indent level is 2 Having heated transport chamber
 [List of Pre Grant Publications for class 37 subclass 230][List of Patents for class 37 subclass 230]230 Subclass 230 indent level is 2 Manually powered
 [List of Pre Grant Publications for class 37 subclass 231][List of Patents for class 37 subclass 231]231 Subclass 231 indent level is 1 With specific means to facilitate connection to, or disconnection from, vehicle
[List of Pre Grant Publications for class 37 subclass 232][List of Patents for class 37 subclass 232]232 Subclass 232 indent level is 1 Vehicle mount with obstacle responsive trip, or yieldable tool (e.g., brush)
 [List of Pre Grant Publications for class 37 subclass 233][List of Patents for class 37 subclass 233]233 Subclass 233 indent level is 2 Resilient impeller or blade
 [List of Pre Grant Publications for class 37 subclass 234][List of Patents for class 37 subclass 234]234 Subclass 234 indent level is 1 Including specific hydraulic control system to position implement
[List of Pre Grant Publications for class 37 subclass 235][List of Patents for class 37 subclass 235]235 Subclass 235 indent level is 1 Vehicle mount including power lift
 [List of Pre Grant Publications for class 37 subclass 236][List of Patents for class 37 subclass 236]236 Subclass 236 indent level is 2 Power means is hydraulically actuated piston
[List of Pre Grant Publications for class 37 subclass 237][List of Patents for class 37 subclass 237]237 Subclass 237 indent level is 1 With endless conveyor
 [List of Pre Grant Publications for class 37 subclass 238][List of Patents for class 37 subclass 238]238 Subclass 238 indent level is 2 And rotary excavating tool
 [List of Pre Grant Publications for class 37 subclass 239][List of Patents for class 37 subclass 239]239 Subclass 239 indent level is 2 Multistage conveyors
 [List of Pre Grant Publications for class 37 subclass 240][List of Patents for class 37 subclass 240]240 Subclass 240 indent level is 2 Carrying excavating tool
[List of Pre Grant Publications for class 37 subclass 241][List of Patents for class 37 subclass 241]241 Subclass 241 indent level is 1 Combined or convertible
[List of Pre Grant Publications for class 37 subclass 242][List of Patents for class 37 subclass 242]242 Subclass 242 indent level is 2 Rotary excavating tool
[List of Pre Grant Publications for class 37 subclass 244][List of Patents for class 37 subclass 244]244 Subclass 244 indent level is 1 Motorized rotary excavating tool
 [List of Pre Grant Publications for class 37 subclass 245][List of Patents for class 37 subclass 245]245 Subclass 245 indent level is 2 Tool arresting means responsive to sensed condition
 [List of Pre Grant Publications for class 37 subclass 246][List of Patents for class 37 subclass 246]246 Subclass 246 indent level is 2 Electric motor drive
 [List of Pre Grant Publications for class 37 subclass 247][List of Patents for class 37 subclass 247]247 Subclass 247 indent level is 2 Rotor shaft adjustable relative to direction of travel
[List of Pre Grant Publications for class 37 subclass 248][List of Patents for class 37 subclass 248]248 Subclass 248 indent level is 2 Diverse multistage rotary tools or tool portions (e.g., feeding and throwing, etc.)
[List of Pre Grant Publications for class 37 subclass 253][List of Patents for class 37 subclass 253]253 Subclass 253 indent level is 2 Fed by scraper blade
[List of Pre Grant Publications for class 37 subclass 257][List of Patents for class 37 subclass 257]257 Subclass 257 indent level is 2 Screw-type auger
 [List of Pre Grant Publications for class 37 subclass 259][List of Patents for class 37 subclass 259]259 Subclass 259 indent level is 2 Centrifugal impeller
[List of Pre Grant Publications for class 37 subclass 260][List of Patents for class 37 subclass 260]260 Subclass 260 indent level is 2 Having specific flow guide
 [List of Pre Grant Publications for class 37 subclass 263][List of Patents for class 37 subclass 263]263 Subclass 263 indent level is 1 Tool prepares wheel path for passage of wheel
[List of Pre Grant Publications for class 37 subclass 264][List of Patents for class 37 subclass 264]264 Subclass 264 indent level is 1 Scoop
 [List of Pre Grant Publications for class 37 subclass 265][List of Patents for class 37 subclass 265]265 Subclass 265 indent level is 2 Manually powered
[List of Pre Grant Publications for class 37 subclass 266][List of Patents for class 37 subclass 266]266 Subclass 266 indent level is 1 Scraper blade
 [List of Pre Grant Publications for class 37 subclass 267][List of Patents for class 37 subclass 267]267 Subclass 267 indent level is 2 Invertible
[List of Pre Grant Publications for class 37 subclass 268][List of Patents for class 37 subclass 268]268 Subclass 268 indent level is 2 Pulled (e.g., by horse or vehicle)
[List of Pre Grant Publications for class 37 subclass 270][List of Patents for class 37 subclass 270]270 Subclass 270 indent level is 2 Mounted on surface contacting support or guide
[List of Pre Grant Publications for class 37 subclass 272][List of Patents for class 37 subclass 272]272 Subclass 272 indent level is 2 V-shaped
[List of Pre Grant Publications for class 37 subclass 279][List of Patents for class 37 subclass 279]279 Subclass 279 indent level is 2 Diagonally oriented
 [List of Pre Grant Publications for class 37 subclass 285][List of Patents for class 37 subclass 285]285 Subclass 285 indent level is 1 Manually powered
[List of Pre Grant Publications for class 37 subclass 304][List of Patents for class 37 subclass 304]304 SELF-LOADING VEHICLE
 [List of Pre Grant Publications for class 37 subclass 305][List of Patents for class 37 subclass 305]305 Subclass 305 indent level is 1 Having endless digger or conveyor
 [List of Pre Grant Publications for class 37 subclass 306][List of Patents for class 37 subclass 306]306 Subclass 306 indent level is 1 Elevating wheel
[List of Pre Grant Publications for class 37 subclass 307][List of Patents for class 37 subclass 307]307 BENEATH A BODY OF WATER (E.G., DREDGER)
 [List of Pre Grant Publications for class 37 subclass 308][List of Patents for class 37 subclass 308]308 Subclass 308 indent level is 1 With signal, scale, indicator, or inspection means
[List of Pre Grant Publications for class 37 subclass 309][List of Patents for class 37 subclass 309]309 Subclass 309 indent level is 1 With means to control dredger operation (e.g., movement of dredged material) in response to sensed condition
 [List of Pre Grant Publications for class 37 subclass 310][List of Patents for class 37 subclass 310]310 Subclass 310 indent level is 2 Swell compensator
 [List of Pre Grant Publications for class 37 subclass 311][List of Patents for class 37 subclass 311]311 Subclass 311 indent level is 2 Suction relief valve
 [List of Pre Grant Publications for class 37 subclass 312][List of Patents for class 37 subclass 312]312 Subclass 312 indent level is 2 Control of swing or swing speed
 [List of Pre Grant Publications for class 37 subclass 313][List of Patents for class 37 subclass 313]313 Subclass 313 indent level is 1 By use of submarine or undersea vessel
[List of Pre Grant Publications for class 37 subclass 314][List of Patents for class 37 subclass 314]314 Subclass 314 indent level is 1 Adapted to excavate specific discrete material
[List of Pre Grant Publications for class 37 subclass 315][List of Patents for class 37 subclass 315]315 Subclass 315 indent level is 2 Shellfish
[List of Pre Grant Publications for class 37 subclass 317][List of Patents for class 37 subclass 317]317 Subclass 317 indent level is 1 Suction
[List of Pre Grant Publications for class 37 subclass 318][List of Patents for class 37 subclass 318]318 Subclass 318 indent level is 2 Having intake screen
 [List of Pre Grant Publications for class 37 subclass 320][List of Patents for class 37 subclass 320]320 Subclass 320 indent level is 2 With pumping chamber
[List of Pre Grant Publications for class 37 subclass 321][List of Patents for class 37 subclass 321]321 Subclass 321 indent level is 2 With means to introduce lift agent directly into suction pipe
 [List of Pre Grant Publications for class 37 subclass 323][List of Patents for class 37 subclass 323]323 Subclass 323 indent level is 2 With fluid jet digger adjacent suction inlet
[List of Pre Grant Publications for class 37 subclass 324][List of Patents for class 37 subclass 324]324 Subclass 324 indent level is 2 Including driven digger adjacent suction inlet (e.g., cutterhead dredger)