US PATENT SUBCLASS 76 / 31
.~.~ Reciprocating tool

Current as of: June, 1999
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76 /   HD   METAL TOOLS AND IMPLEMENTS, MAKING

25.1  DF  SAW-MAKING OR FURBISHING DEVICE OR MACHINE {12}
*  DD  .~ Sharpening and gumming {3}
31.~.~ Reciprocating tool {5}
32  DF  .~.~.~> Gin saws
33  DF  .~.~.~> Traveling tool carriage
34  DF  .~.~.~> Clamp feed
35  DF  .~.~.~> Tooth-engaging feed
36  DF  .~.~.~> File holders and guides

DEFINITION

Classification: 76/31

Machines for sharpening saws in which a file or sharpening tool is positively guided in its reciprocation across the saw. The patents in this subclass are mainly hand-operated devices.