Manual keyway punching tool

Details Manual keyway punching tool Manual keyway punching tool

1981-04-13

1983-03-01

Kunin, Stephen G.

Cutlery

Cutting tools

Plural cooperating blades

30184, 30363, B26B 1300

Patent

active

043751288

ABSTRACT:
This invention relates to a manually operated cutting tool for cutting notches or slits in metal, plastic and the like.

REFERENCES:
patent: 974553 (1910-11-01), Cloes
patent: 1061661 (1913-05-01), Cloes
patent: 1475273 (1923-11-01), Bernard
patent: 2329387 (1943-09-01), Brenning
patent: 2856686 (1958-10-01), Stanley

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