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[Search a list of Patent Appplications for class 48]  Class   48GAS: HEATING AND ILLUMINATING
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                ACETYLENE
    [List of Patents for class 48 subclass 1]  1           Subclass 1 indent level is 1 Generation and liquefaction
    [List of Patents for class 48 subclass 2]  2           Subclass 2 indent level is 1 Generator and holder
   [List of Patents for class 48 subclass 3R]  3R           Subclass 3R indent level is 1 Generator and mixer
    [List of Patents for class 48 subclass 3A]  3A           Subclass 3A indent level is 2 Special features
                Subclass indent level is 1 Generators
   [List of Patents for class 48 subclass 4]  4           Subclass 4 indent level is 2 Water feed
   [List of Patents for class 48 subclass 5]  5           Subclass 5 indent level is 3 Holder operated
   [List of Patents for class 48 subclass 6]  6           Subclass 6 indent level is 4 Series
    [List of Patents for class 48 subclass 7]  7           Subclass 7 indent level is 5 Automatic switch
    [List of Patents for class 48 subclass 8]  8           Subclass 8 indent level is 4 Cell series
    [List of Patents for class 48 subclass 9]  9           Subclass 9 indent level is 4 Gasometer and high-pressure holder
    [List of Patents for class 48 subclass 10]  10           Subclass 10 indent level is 4 Interior valve
    [List of Patents for class 48 subclass 11]  11           Subclass 11 indent level is 4 Rotary cylinder
    [List of Patents for class 48 subclass 12]  12           Subclass 12 indent level is 4 Underfeed
   [List of Patents for class 48 subclass 13]  13           Subclass 13 indent level is 4 Valveless
    [List of Patents for class 48 subclass 14]  14           Subclass 14 indent level is 5 Displacer
    [List of Patents for class 48 subclass 15]  15           Subclass 15 indent level is 5 Flexible tube
    [List of Patents for class 48 subclass 16]  16           Subclass 16 indent level is 5 Generator supported
    [List of Patents for class 48 subclass 17]  17           Subclass 17 indent level is 5 Siphon
    [List of Patents for class 48 subclass 18]  18           Subclass 18 indent level is 5 Tilting
   [List of Patents for class 48 subclass 19]  19           Subclass 19 indent level is 3 Ebb and flow
    [List of Patents for class 48 subclass 20]  20           Subclass 20 indent level is 4 Series
    [List of Patents for class 48 subclass 21]  21           Subclass 21 indent level is 4 Cell series
    [List of Patents for class 48 subclass 22]  22           Subclass 22 indent level is 4 Concentric
    [List of Patents for class 48 subclass 23]  23           Subclass 23 indent level is 3 Series
    [List of Patents for class 48 subclass 24]  24           Subclass 24 indent level is 3 Cell series
   [List of Patents for class 48 subclass 25]  25           Subclass 25 indent level is 3 Capillary
    [List of Patents for class 48 subclass 26]  26           Subclass 26 indent level is 4 Adjustable
   [List of Patents for class 48 subclass 27]  27           Subclass 27 indent level is 3 Percolating
    [List of Patents for class 48 subclass 28]  28           Subclass 28 indent level is 4 Pressure valves
    [List of Patents for class 48 subclass 29]  29           Subclass 29 indent level is 3 Expansible carbide container
    [List of Patents for class 48 subclass 30]  30           Subclass 30 indent level is 3 Expansible water holder
    [List of Patents for class 48 subclass 31]  31           Subclass 31 indent level is 3 Inexpansible gas holder and water feed
   [List of Patents for class 48 subclass 32R]  32R           Subclass 32R indent level is 3 Oscillating
    [List of Patents for class 48 subclass 33]  33           Subclass 33 indent level is 3 Rotary cylinder
    [List of Patents for class 48 subclass 34]  34           Subclass 34 indent level is 3 Rotary grate
    [List of Patents for class 48 subclass 35]  35           Subclass 35 indent level is 3 Underfeed
    [List of Patents for class 48 subclass 36]  36           Subclass 36 indent level is 3 Interlocking devices
    [List of Patents for class 48 subclass 37]  37           Subclass 37 indent level is 3 Pressure valves
   [List of Patents for class 48 subclass 38]  38           Subclass 38 indent level is 2 Carbide feed
    [List of Patents for class 48 subclass 39]  39           Subclass 39 indent level is 3 Apron or belt
    [List of Patents for class 48 subclass 40]  40           Subclass 40 indent level is 3 Cock
   [List of Patents for class 48 subclass 41]  41           Subclass 41 indent level is 3 Dip
    [List of Patents for class 48 subclass 42]  42           Subclass 42 indent level is 4 Cell series
    [List of Patents for class 48 subclass 43]  43           Subclass 43 indent level is 3 Flap valve
   [List of Patents for class 48 subclass 44]  44           Subclass 44 indent level is 3 Hand
    [List of Patents for class 48 subclass 45]  45           Subclass 45 indent level is 4 Dip
   [List of Patents for class 48 subclass 46]  46           Subclass 46 indent level is 3 Measured charges
    [List of Patents for class 48 subclass 47]  47           Subclass 47 indent level is 4 Cartridges
   [List of Patents for class 48 subclass 48]  48           Subclass 48 indent level is 4 Rotary carrier
    [List of Patents for class 48 subclass 49]  49           Subclass 49 indent level is 5 Vertical
    [List of Patents for class 48 subclass 50]  50           Subclass 50 indent level is 4 Stationary
    [List of Patents for class 48 subclass 51]  51           Subclass 51 indent level is 3 Piston
    [List of Patents for class 48 subclass 52]  52           Subclass 52 indent level is 3 Plate valve
   [List of Patents for class 48 subclass 53]  53           Subclass 53 indent level is 3 Pop valve
   [List of Patents for class 48 subclass 53.1]  53.1           Subclass 53.1 indent level is 4 Bell operated
    [List of Patents for class 48 subclass 53.2]  53.2           Subclass 53.2 indent level is 5 Bell and holder combined
    [List of Patents for class 48 subclass 53.3]  53.3           Subclass 53.3 indent level is 4 Diaphragm operated
    [List of Patents for class 48 subclass 53.4]  53.4           Subclass 53.4 indent level is 4 Float operated
    [List of Patents for class 48 subclass 54]  54           Subclass 54 indent level is 3 Screw
    [List of Patents for class 48 subclass 55]  55           Subclass 55 indent level is 3 Slide valve
    [List of Patents for class 48 subclass 58]  58           Subclass 58 indent level is 2 Valves, gas and water feed
    [List of Patents for class 48 subclass 56]  56           Subclass 56 indent level is 2 Automatic safety escape
    [List of Patents for class 48 subclass 57]  57           Subclass 57 indent level is 2 Sludge remover
   [List of Patents for class 48 subclass 59]  59           Subclass 59 indent level is 1 Carbide cartridges
    [List of Patents for class 48 subclass 60]  60           Subclass 60 indent level is 2 Conglomerate
   [List of Patents for class 48 subclass 61]  61           GENERATORS
                Subclass indent level is 1 Hydrogen
   [List of Patents for class 48 subclass 116]  116           Subclass 116 indent level is 2 Carburetor
    [List of Patents for class 48 subclass 117]  117           Subclass 117 indent level is 3 Air
    [List of Patents for class 48 subclass 118]  118           Subclass 118 indent level is 3 Floating oil
   [List of Patents for class 48 subclass 62R]  62R           Subclass 62R indent level is 1 Cupola
    [List of Patents for class 48 subclass 71]  71           Subclass 71 indent level is 2 Coal, oil and water
    [List of Patents for class 48 subclass 72]  72           Subclass 72 indent level is 2 Coal and oil
    [List of Patents for class 48 subclass 73]  73           Subclass 73 indent level is 2 Coal and water
    [List of Patents for class 48 subclass 76]  76           Subclass 76 indent level is 2 Producers
    [List of Patents for class 48 subclass 77]  77           Subclass 77 indent level is 2 Coal
   [List of Patents for class 48 subclass 78]  78           Subclass 78 indent level is 2 Water
   [List of Patents for class 48 subclass 79]  79           Subclass 79 indent level is 3 Carburetor
    [List of Patents for class 48 subclass 80]  80           Subclass 80 indent level is 4 Fixer
    [List of Patents for class 48 subclass 81]  81           Subclass 81 indent level is 4 Retort
    [List of Patents for class 48 subclass 84]  84           Subclass 84 indent level is 3 Oil gas
   [List of Patents for class 48 subclass 82]  82           Subclass 82 indent level is 3 Up-and-down run
    [List of Patents for class 48 subclass 83]  83           Subclass 83 indent level is 4 Interlocking valves
    [List of Patents for class 48 subclass 85]  85           Subclass 85 indent level is 2 Carbon monoxide
    [List of Patents for class 48 subclass 75]  75           Subclass 75 indent level is 2 Oil and steam injected
   [List of Patents for class 48 subclass 63]  63           Subclass 63 indent level is 2 Air and steam injected
    [List of Patents for class 48 subclass 64]  64           Subclass 64 indent level is 3 Superheated
    [List of Patents for class 48 subclass 65]  65           Subclass 65 indent level is 2 Electric
    [List of Patents for class 48 subclass 66]  66           Subclass 66 indent level is 2 Rotary bottom
   [List of Patents for class 48 subclass 67]  67           Subclass 67 indent level is 2 Water jacket
    [List of Patents for class 48 subclass 68]  68           Subclass 68 indent level is 3 Rotary bottom
    [List of Patents for class 48 subclass 69]  69           Subclass 69 indent level is 2 Water-seal pit
    [List of Patents for class 48 subclass 74]  74           Subclass 74 indent level is 2 Refractory filling
                Subclass indent level is 2 Fuel agitating
    [List of Patents for class 48 subclass 85.1]  85.1           Subclass 85.1 indent level is 3 Movable wall
    [List of Patents for class 48 subclass 85.2]  85.2           Subclass 85.2 indent level is 3 Stirrer
   [List of Patents for class 48 subclass 86R]  86R           Subclass 86R indent level is 2 Chargers
    [List of Patents for class 48 subclass 86A]  86A           Subclass 86A indent level is 3 Gas making underfeed
    [List of Patents for class 48 subclass 87]  87           Subclass 87 indent level is 2 Accessories
    [List of Patents for class 48 subclass 62A]  62A           Subclass 62A indent level is 2 Partial combustion carburetor
   [List of Patents for class 48 subclass 89]  89           Subclass 89 indent level is 1 Retort
    [List of Patents for class 48 subclass 98]  98           Subclass 98 indent level is 2 Coal, oil and water
    [List of Patents for class 48 subclass 99]  99           Subclass 99 indent level is 2 Coal and water
    [List of Patents for class 48 subclass 100]  100           Subclass 100 indent level is 2 Coal and oil
    [List of Patents for class 48 subclass 101]  101           Subclass 101 indent level is 2 Coal
   [List of Patents for class 48 subclass 102R]  102R           Subclass 102R indent level is 2 Oil
    [List of Patents for class 48 subclass 103]  103           Subclass 103 indent level is 3 Electric heater
    [List of Patents for class 48 subclass 104]  104           Subclass 104 indent level is 3 Jet mixers