US PATENT SUBCLASS 235 / 15
.~.~.~ Key coupled

Current as of: June, 1999
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235 /   HD   REGISTERS

7 R  DF  CASH REGISTERS {11}
12  DF  .~ Key operated {2}
14  DF  .~.~ Differential mechanism {2}
15.~.~.~ Key coupled

DEFINITION

Classification: 235/15

(under subclass 14) Cash-registers having differential mechanism where a key-lever when actuated is connected with a coupling or "universal" bar, so that when several keys are thus coupled further pressure upon any one of such keys will cause the operation of the machine.