Apparatus for punching holes in boards

Cutting – Other than completely through work thickness or through work... – Pricking

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83348, 83660, B26F 124

Patent

active

044598912

ABSTRACT:
The apparatus includes a rotatably mounted roll having an elastomeric sleeve with nails mounted therein at equal angles respectively to corresponding imaginary radial lines of the roll.

REFERENCES:
patent: 3074303 (1963-01-01), Waters
patent: 3079826 (1963-03-01), Shively
patent: 3526349 (1970-09-01), Moro
patent: 3789710 (1974-02-01), Silverstein
patent: 4037499 (1977-07-01), Hillman
patent: 4326909 (1982-04-01), Slavik

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