US PATENT SUBCLASS 335 / 242
.~.~.~ With plural armatures selectively retarded

Current as of: June, 1999
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335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

209  DF  MAGNETS AND ELECTROMAGNETS {10}
220  DF  .~ With magneto-mechanical motive device (e.g., electromagnet with armature) {21}
239  DF  .~.~ With time delay armature-movement control means {3}
242.~.~.~ With plural armatures selectively retarded

DEFINITION

Classification: 335/242

(under subclass 239) Subject matter including plural armatures with time delay means for delaying different armatures at different time intervals.

SEE OR SEARCH THIS CLASS, SUBCLASS:

60, for switches with plural sets of contacts selectively or differently delayed.

232+, for polarized electromagnets with plural armatures.

259, for plural plunger type armatures.