US PATENT SUBCLASS 248 / 585
.~.~.~ Parallelogram linkage

Current as of: June, 1999
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248 /   HD   SUPPORTS

560  DF  RESILIENT SUPPORT {16}
580  DF  .~ Including load sustaining bearing or guide {8}
584  DF  .~.~ Resilient means acts through linkage or gear {5}
585.~.~.~ Parallelogram linkage {2}
586  DF  .~.~.~.~> Diagonal spring
587  DF  .~.~.~.~> Torsion spring

DEFINITION

Classification: 248/585

Parallelogram linkage:

(under subclass 584) Structure comprising at least four pivotally connected links wherein the lines joining the pivot members form a parallelogram.