US PATENT SUBCLASS 83 / 643
.~.~ Link suspension

Current as of: June, 1999
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83 /   HD   CUTTING

523  DF  MEANS TO DRIVE OR TO GUIDE TOOL {35}
642  DF  .~ Parallel draw-cut (e.g., translatory) {1}
643.~.~ Link suspension

DEFINITION

Classification: 83/643

(under subclass 642) Device in which the tool is suspended, guided and/or restrained in its motion by a plurality of parallel links of equal length.

(1) Note. The links may, of course, comprise portions of levers, bell-cranks, or other elements having additional functions.