Clamping device for holding drawings

Details Clamping device for holding drawings Clamping device for holding drawings

1974-12-09

1976-12-28

Griffin, Donald A.

Buckles, buttons, clasps, etc.

Interchangeable button loop and pin

248229, 248316D, A44B 2100

Patent

active

039992527

ABSTRACT:
This device consists primarily of a sleeve having C clamp means for securing it to a swivel type bench lamp. The device includes oppositely opposed and adjustable rod means carried within the sleeve, the rods having spring clamps attached thereto for holding drawings and a third and middle clip is secured to the sleeve on its exterior for providing additional support for a drawing to be held and is adaptable for use with a small drawing.

REFERENCES:
patent: 401662 (1889-04-01), Snow
patent: 742008 (1903-10-01), Cook
patent: 1821427 (1931-09-01), Elder
patent: 1934528 (1933-11-01), Faries
patent: 2585603 (1952-02-01), Vaisey et al.
patent: 3245169 (1966-04-01), Kennel
patent: 3322381 (1967-05-01), Bubb
patent: 3538555 (1970-11-01), Langston
patent: 3737178 (1973-06-01), Tjernlund

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