| Class 373 | INDUSTRIAL ELECTRIC HEATING FURNACES |
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![[List of Pre Grant Publications for class 373 subclass 1]](../as.gif) | ![[List of Patents for class 373 subclass 1]](../ps.gif) | 1 | PLURAL DIVERSE HEATING MEANS |
| | 8 | ENVIRONMENTAL CONTROL |
| | 10 | ELECTRON BEAM FURNACE DEVICE |
| | 18 | PLASMA FURNACE DEVICE |
| | 19 |  Indirect heating |
| | 21 | Remelting furnace (i.e., ingot remelting) |
| | 22 | Direct furnace (i.e., plasma flame impinges on the melt) |
| | 26 | GLOW DISCHARGE FURNACE DEVICE |
| | 27 | GLASS FURNACE DEVICE |
| | 42 | ELECTROSLAG REMELTING DEVICE |
| | 43 | Plural furnace units |
| | 44 | Body detail |
| | 46 | Start-up |
| | 47 | Power supply system |
| | 51 | Electrode replacement |
| | 52 | Electrode support |
| | 54 | Electrode |
| | 56 | WITH CONDENSATING DEVICE |
| | 60 | ARC FURNACE DEVICE |
| | 61 | Indirect |
| | 62 |  Arc between spaced electrodes |
| | 65 | Arc between electrode and crucible exterior |
| | 66 | Combined with or convertible to direct arc furnace |
| | 67 | Ingot remelting |
| | 68 | With internal atmosphere control (e.g., pressure, vacuum, etc.) |
| | 69 | With electrode holder or guide |
| | 70 | With power regulation |
| | 71 | Furnace body detail |
| | 72 | Hearth or crucible |
| | 73 | Roof |
| | 75 | Sidewall |
| | 77 | With internal atmosphere control (e.g., pressure, vacuum, etc.) |
| | 78 | Plural furnace units |
| | 79 | Charging or discharging |
| | 85 | For manipulation of the charge or melt (e.g., stirring) |
| | 88 | Electrode |
| | 89 | Self-baking (i.e., Soderberg) |
| | 90 | Non-consumable |
| | 91 | Sectional |
| | 93 | Composite (e.g., water cooled body with carbon tip) |
| | 94 | Electrode support |
| | 95 | Seal |
| | 96 | With electrode shield |
| | 97 | For Soderberg electrode (e.g., casing) |
| | 98 | Mast |
| | 100 | Slipping holder |
| | 101 | With electrical contact or terminal |
| | 102 | Power supply system |
| | 109 | RESISTANCE FURNACE DEVICE |
| | 110 | With internal atmosphere control (e.g., pressure, vacuum, etc.) |
| | 113 | For cooling |
| | 115 | Charging or discharging |
| | 116 | For manipulation of the charge or melt (e.g., stirring) |
| | 117 | With heating element detail |
| | 118 | Resistance crucible |
| | 119 | Wall contained |
| | 120 | Open circuit (e.g., charge internal resistance heating) |
| | 121 |  Salt bath heating |
| | 122 | Including crucible or hearth structure details |
| | 123 | With preheating |
| | 125 | Including terminal detail |
| | 127 | Having resistance encasement means |
| | 128 | Mounting |
| | 132 | Non-metallic resistor |
| | 134 | Including resistor shape detail |
| | 135 | Control |
| | 137 | Lining |
| | 138 | INDUCTION FURNACE DEVICE |
| | 139 | Zone melting |
| | 140 | With internal atmosphere control (e.g., pressure, vacuum, etc.) |
| | 142 | For charging or discharging |
| | 144 | Having plural heating elements |
| | 145 | Having condition signaling means |
| | 146 | With means for manipulation of the charge or melt (e.g., stirring) |
| | 147 | Power supply system |
| | 149 | For furnace regulating |
| | 151 | Coreless |
| | 159 | Core-type (i.e., channel) |
| | 166 | MISCELLANEOUS |
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