Key blank and key

Details Key blank and key Key blank and key

2007-03-30

2008-08-19

Gall, Llyod A (Department: 3673)

Locks

Operating mechanism

Key

C070S347000, C070S406000, C070S407000, C070S409000, C070S420000, C070S453000

Reexamination Certificate

active

07412860

ABSTRACT:
A key blank or key has a rectangular parallel metal shaped blade which has side edges formed with grooves for cooperating with a complementary shaped keyway; the sides of the blank having a portion grooved for registration, another portion grooved for top-level hierarchical master keying, and two other portions, one on each side of the blade, for further master key variations and different combinations. One of the two further sections being curvilinear and the other rectangular or angular cuts.

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