US PATENT SUBCLASS 74 / 576
.~.~ Noiseless

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

*  DD  ELEMENTS {10}
575  DF  .~ Pawls and ratchets {3}
576.~.~ Noiseless

DEFINITION

Classification: 74/576

(under subclass 575) Devices comprising pawls held out of engagement with the ratchet wheel during rotation of the latter in one direction and moved into engagement with said ratchet wheel on the reverse rotation of the latter.