US PATENT SUBCLASS 200 / 309
.~.~ Interchangeable inserts

Current as of: June, 1999
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200 /   HD   ELECTRICITY: CIRCUIT MAKERS AND BREAKERS

237  DF  ELECTRIC SWITCH DETAILS {5}
308  DF  .~ Indicators {2}
309.~.~ Interchangeable inserts

DEFINITION

Classification: 200/309

(under subclass 308) Subject matter, wherein the indicating means are inserts designed to be readily interchangeable. Typical interchangeable inserts carry different words.