Turnover key and corresponding cylinder lock

Details Turnover key and corresponding cylinder lock Turnover key and corresponding cylinder lock

1973-09-11

1976-08-17

Frazier, Roy D.

Locks

Operating mechanism

Key

70421, 70419, E05B 2700

Patent

active

039746704

ABSTRACT:
A turnover key with indentations on both sides for operation of bolt keepers of a cylinder lock, and with a sloped keyway at the tip of the key. The sloped keyway, which is situated before each row of indentation, runs almost to the opposite broad side of the key and into it.

REFERENCES:
patent: 3035433 (1962-05-01), Testa
patent: 3349587 (1967-10-01), Keller
patent: 3742744 (1973-07-01), Lumme
patent: 3777520 (1973-12-01), Crepinsek

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