US PATENT SUBCLASS 16 / 69
.~.~ Spring and gear

Current as of: June, 1999
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16 /   HD   MISCELLANEOUS HARDWARE

49  DF  CHECKS AND CLOSERS {6}
66  DF  .~ Pneumatic {4}
69.~.~ Spring and gear

DEFINITION

Classification: 16/69

(under subclass 66) Devices in which the closing devices include springs and gear elements.