Crank handle

Details Crank handle Crank handle

1990-12-03

1992-12-08

Bullock, B. J.

Tools and hardware

Handle, knob or pull

Singular point of attachment

D 8400

Patent

active

D03315312

REFERENCES:
patent: D161022 (1950-11-01), Haviland
patent: D189473 (1960-12-01), Bertsch
patent: 2290815 (1942-07-01), Ruppel
patent: 2978927 (1961-04-01), Blanton
patent: 3114542 (1963-12-01), Ahlgren
patent: 4083264 (1978-04-01), Van Klompenburg
patent: 4220054 (1980-09-01), Kuhlman

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