4. Communications: electrical
  5. Systems
  6. Call station

Robert A. Kulka

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Filment switch for a lamp ballast

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit
Patent

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Fluorescent ballast assembly including a strip circuit board

Inductor devices – With mounting or supporting means
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Fluorescent-lamp leadless ballast with improved connector

Electrical connectors – With stress relieving means for conductor to terminal joint – Conductor gripped by or entirely within connector housing
Patent

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Fluorescent-lamp leadless ballast with improved connector

Inductor devices – With outer casing or housing – Potted type
Patent

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Printing machine high voltage power system and circuit

Communications: electrical – Systems – Call station
Patent

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Profile ID: LFUS-PAI-P-1034434

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