US PATENT SUBCLASS 70 / 140
.~.~.~.~.~.~ Screw
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} |
| 140 |  | .~.~.~.~.~.~ Screw |
DEFINITION
Classification: 70/140
(under subclass 124) Subject matter wherein the securing function is accomplished by an element which is threaded or has threaded engagement with the keeper.