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![[Search a list of Patent Appplications for class 174]](../as.gif) Class 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
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![[List of Patents for class 174 subclass 1]](../ps.gif) | 1 | MISCELLANEOUS |
| | 2 | LIGHTNING PROTECTION |
| | 4R | AIR TERMINALS |
| | 5R | ELECTRIC SHOCK HAZARD PROTECTIVE DEVICES |
| | 6 | EARTH GROUNDS |
| | 8 | WITH FLUIDS OR VACUUM |
| | 9R |  Current conductive fluid and/or vacuum |
| | 10 | With cable or conduit preinstallation devices |
| | 11R | With fluid-condition responsive and/or indicating means |
| | 12R | With expansion and contraction means |
| | 14R | With fluid maintenance or conditioning means |
| | 15.1 | With cooling or fluid feeding, circulating or distributing |
| | 15.2 |  By heat pipe |
| | 15.3 | For bushing or pothead |
| | 15.4 | Superconductive type |
| | 15.6 | For cable, conductor or joint |
| | 15.7 | For welding or furnace cable |
| | 16.1 | By ventilation or gas circulation |
| | 17R | Boxes and housings |
| | 17.05 | Hermetic sealed envelope type (e.g., with exhaust stem) |
| | 18 | With bushing, terminal or lead-in |
| | 17LF | Liquid filled |
| | 17GF | Gas filled |
| | 17SF | Solid filled |
| | 17VA | Venting, absorption, expansion |
| | 17CT | Closures, terminals, gaskets |
| | 19 | Conduit or cable end structure |
| | 21R | Conduit or cable joints |
| | 22R | With fluid stops |
| | 21JS | Joints: separable |
| | 21JR | Joints: rotatable |
| | 21JC | Joints: rotatable, coaxial |
| | 21C | Joints: coaxial |
| | 21CA | Joints: coaxial angle expansion |
| | 23R | With fluid stops |
| | 24 | Conduits, cables and conductors |
| | 30 | Insulators |
| | 32 | ANTI-INDUCTIVE STRUCTURES |
| | 33 | Conductor transposition |
| | 350 | Shielded |
| | 351 | Resilient contacts |
| | 352 |  Metal coil core |
| | 353 | Magnetic |
| | 354 | Attaching clip or finger |
| | 355 | Strip or metal comb |
| | 356 | Conductive shell with nonconductive core |
| | 358 | Polymeric gasket |
| | 359 | Connectors |
| | 360 | Feedthrough |
| | 363 | Joints |
| | 364 | Pneumatic or hydraulic |
| | 365 | Sliding |
| | 366 | Resilient member |
| | 372 | Interlocking |
| | 374 | Between door and wall |
| | 376 | Interconnection order |
| | 377 | Housing or panel |
