US PATENT SUBCLASS 70 / 139-- .~.~.~.~.~.~.~ Key operable only

US PATENT SUBCLASS 70 / 139
.~.~.~.~.~.~.~ Key operable only

Current as of: June, 1999
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70 /	HD	LOCKS

57	DF	SPECIAL APPLICATION {7}
77	DF	.~ For closures {5}
91	DF	.~.~ Door {5}
101	DF	.~.~.~ Swinging door {4}
*	DD	.~.~.~.~ Dead bolts {2}
124	DF	.~.~.~.~.~ Single {5}
135	DF	.~.~.~.~.~.~ Swinging {4}
139		.~.~.~.~.~.~.~ Key operable only

DEFINITION

Classification: 70/139

(under subclass 135) Subject matter wherein the operation is effected by key lock operation only.