US PATENT SUBCLASS 200 / 210
.~.~ Contact attached to or unitary with piston or plunger

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

182  DF  LIQUID CONTACT {17}
209  DF  .~ Piston or plunger means {1}
210.~.~ Contact attached to or unitary with piston or plunger

DEFINITION

Classification: 200/210

(under subclass 209) Subject matter wherein the piston functions as a contact or carries a contact to make or break the circuit.