(under subclass 17) Boxes and housings having bushing or terminal means specially modified for cooperation with the structure of the housing or with some device or fluid contained therein.
(1) Note. Inventions under subclass 8 relating merely to the mounting of a bushing or terminal in a wall or plate are in this class, subclass 31, even though the wall or plate is disclosed or claimed as a box or housing where no characteristics thereof, such as its structure or contents,
are claimed.
(1.5) Note. Search this class, subclasses 17.05+ for hermetically sealed envelopes and housings under subclass 8 such as are used for electric lamps and electric space discharge devices and which are provided with lead-in conductors for transmitting electrical energy through the wall of the envelope or housing.