US PATENT SUBCLASS 307 / 112
SWITCHING SYSTEMS

Current as of: June, 1999
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307 /   HD   ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS

112SWITCHING SYSTEMS {5}
113  DF  .~> Plural switches {2}
116  DF  .~> Condition responsive {4}
132 R  DF  .~> Repetitive make and break {4}
134  DF  .~> With operation facilitating feature {2}
139  DF  .~> Switch actuation {5}

DEFINITION

Classification: 307/112

(under the class definition) Subject matter relating to miscellaneous switching systems.

(1) Note. This is a miscellaneous class for electrical switching systems and the search should be continued in all cases in any other class which may possibly be pertinent.

SEE OR SEARCH CLASS

315, Electric Lamp and Discharge Devices: Systems,

362, and the search notes to this subclass for miscellaneous switching systems utilized to control a space discharge device or electric lamp.

361, Electricity: Electrical Systems and Devices,

139+, for control circuits for electromagnetic devices. 365, Static Information Storage and Retrieval, appropriate subclass for the reading/writing of information in a static storage system.