(under subclass 226) Subject matter wherein a casing or housing, which is usually elongated and cylindrical, extends through a plate, wall, or similar structure whose thickness is less than the length of the casing or housing, the casing or housing being secured to the plate or wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
28+, for probe type resistors whose resistance value is responsive to ambient temperature.
229, for resistors in a probe or line connector.
SEE OR SEARCH CLASS
174, Electricity: Conductors and Insulators,
18, and 50+ for boxes and housings within which a conduit or cable may extend; subclasses 48+ for wall mounted conduits; and subclasses 151+ for insulators extending through a wall or plate. 285, Pipe Joints or Couplings,
