US PATENT SUBCLASS 335 / 153
.~.~ With permanent magnet structure

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

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
151  DF  .~ Vacuum or hermetically sealed type (e.g., reed switch) {3}
153.~.~ With permanent magnet structure

DEFINITION

Classification: 335/153

(under subclass 151) Subject matter wherein the structure includes at least one permanent magnet means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

84+, for polarity responsive devices with significant magnetic structure.

91+, for vibratory type with significant magnet structure.

177+, for switch devices utilizing plural magnets.

230+, for electromagnets utilizing permanent magnets.

302, for significant permanent magnet structure, per se, applicable to switches or relays. SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

61.62+, for closure actuated devices which may utilize reed switches with particular magnet means.