Antilock-freezing device

Locks – Operating mechanism – Key

Patent

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Details

70408, 70424, 70455, E05B 1900

Patent

active

042978637

ABSTRACT:
A flat strip section fits in width and height into a keyhole and has non-operable teeth extending from the top and from the bottom. One end of the flat strip section is anchored in one part of a two part gripping stud. The second part is separably connectable to the first part by a detent connection.

REFERENCES:
patent: 3408842 (1968-11-01), Barnes
patent: 3475934 (1969-11-01), Reisner
patent: 3780550 (1973-12-01), Simorghi
patent: 3861182 (1975-01-01), Skinner
patent: 4118962 (1978-10-01), Block
Hardware Sales and Supply Catalog, Jul. 20, 1978, p. N 115.

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