Mitre frame clamp

Details Mitre frame clamp Mitre frame clamp

1975-03-27

1977-04-26

Mancene, Louis G.

Card, picture, or sign exhibiting

Display card

Having a curved display panel

G09F 112

Patent

active

040192709

ABSTRACT:
A picture frame clamp having four corner brackets for holding the respective corners at a right angular relationship. The four corner brackets are four diagonally extending strap lengths which are connected adjacent the intersecting ends thereof by an adjustment screw to firmly clamp the corners together in a right angular relationship.
The straps are connected to the corners so as to be capable of varying the length thereof to the clamp at the intersection thereby to permit the clamp to be adaptable for use for different picture frames.

REFERENCES:
patent: 135082 (1873-01-01), Clem
patent: 1420268 (1922-06-01), Hodny
patent: 1928182 (1933-09-01), Mahoney
patent: 2209972 (1940-08-01), Horwitt
patent: 2368991 (1945-02-01), Kopp
patent: 3849920 (1974-11-01), Trowbridge

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