US PATENT SUBCLASS 194 / 331
.~.~ Serrated edge

Current as of: June, 1999
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194 /   HD   CHECK-ACTUATED CONTROL MECHANISMS

302  DF  INCLUDING MEANS TO TEST VALIDITY OF CHECK {4}
328  DF  .~ Having means to test surface configuration {4}
331.~.~ Serrated edge

DEFINITION

Classification: 194/331

Serrated edge:

(under subclass 328) Apparatus wherein the testing means includes a device adapted to determine the presence of a series of grooves in the check's rim.