US PATENT SUBCLASS 324 / 504
.~.~ With trailer

Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

500  DF  FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS {10}
503  DF  .~ In vehicle wiring {2}
504.~.~ With trailer

DEFINITION

Classification: 324/504

With trailer:

(under subclass 503) Subject matter for testing the operability of various lighting and signal circuits located on trailers.