US PATENT SUBCLASS 33 / 789
.~.~.~.~ Including differential transformer

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

700  DF  DISTANCE MEASURING {13}
783  DF  .~ Opposed contacts {10}
787  DF  .~.~ Extensometer {2}
788  DF  .~.~.~ With circuit means {1}
789.~.~.~.~ Including differential transformer

DEFINITION

Classification: 33/789

Including differential transformer:

(under subclass 788) Subject matter having a transformer which joins two or more sources of signals to a common transmission line.