US PATENT SUBCLASS 70 / 21
.~.~ Combination and/or key-controlled

Current as of: June, 1999
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70 /   HD   LOCKS

14  DF  PORTABLE {3}
20  DF  .~ Padlocks {5}
21.~.~ Combination and/or key-controlled

DEFINITION

Classification: 70/21

(under subclass 20) Padlocks embodying either combination or key controlled securing mechanism, or both of said mechanisms, either one or both of which may effect release.

SEE OR SEARCH THIS CLASS, SUBCLASS:

284+, for the association of the two types of operating mechanisms in their specific aspects.