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Patent for Sale:Private Listing: Number 4614
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Class 315: Electric Lamp And Discharge Devices: Systems
Electric lamp and electric space discharge device systems: structural combinations with circuit elements; structural combinations with heating and/or cooling means; cathode-ray tubes; lamps and/or discharge devices as sole load devices; lamps; electric space discharge devices gas or vapor discharge devices; high vacuum-type discharge devices, and gas or vapor-type discharge devices claimed broadly; plural load device systems; art uses and combinations with art devices; testing electric lamps and discharge devices; and operating a lamp or a gas or vapor discharge device.Subclass 72: Load device and periodic electric switch
Subclass 186: Periodic switch in the supply circuit
Subclass 291: CURRENT AND/OR VOLTAGE REGULATION
Subclass 297: Automatic regulation
Subclass 360: TIME-CONTROLLED