US PATENT SUBCLASS 338 / 76
.~ Interchangeable resistors of different resistance value


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338 /   HD   ELECTRICAL RESISTORS

68  DF  MECHANICALLY VARIABLE (E.G., RHEOSTAT) {24}
76.~ Interchangeable resistors of different resistance value


DEFINITION

Classification: 338/76

(under subclass 68) Subject matter including two or more physically similar resistors of different resistance values together with means effecting or permitting a change or substitution of one resistor for the other in an associated electrical circuit, i.e., both terminals of one resistor are separable from the electrical circuit and the terminals of the other resistor are connected in the electrical circuit in a corresponding position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

77, for plug boxes.

185+, for mechanically variable resistors of the tap type.

200+, for mechanically variable resistors generally including a switch for effecting a change in the resistance value.