US PATENT SUBCLASS 74 / 521
.~.~.~.~ Lazy tongs

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

469  DF  CONTROL LEVER AND LINKAGE SYSTEMS {8}
*  DD  .~ Elements {8}
519  DF  .~.~ Levers {5}
520  DF  .~.~.~ Toggle {1}
521.~.~.~.~ Lazy tongs

DEFINITION

Classification: 74/521

(under subclass 520) Devices consisting of a series of diagonal levers pivoted together in the middle and at the ends by which arrangement the device can be extended.

(1) Note. When claimed in combination with a control mechanism, see the appropriate control subclass above.

SEE OR SEARCH CLASS

248, Supports,

277.1, for lazy tong brackets.