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Lamp power supply arrangement for key telephone system

H - Electricity – 05 – B
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Lamp protective, electronic ballast

H - Electricity – 05 – B
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Lamp socket, lamp and method of controlling lighting

H - Electricity – 05 – B
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Lamp starting and operating circuit

H - Electricity – 05 – B
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Lamp starting circuit

H - Electricity – 05 – B
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Lamp starting circuit

H - Electricity – 05 – B
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Lamp string controlling device

H - Electricity – 05 – B
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Lamp transformer for use with an electronic dimmer and...

H - Electricity – 05 – B
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Lamp with built-in voltage converter including a...

H - Electricity – 05 – B
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Lamp with integral pulse width modulated voltage control...

H - Electricity – 05 – B
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Lamp with multiple light-producing elements

H - Electricity – 05 – B
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Lamp with two light sources

H - Electricity – 05 – B
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Laser diode intensity and wavelength control

H - Electricity – 05 – B
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Laser initiated three electrode type triggered vacuum gap...

H - Electricity – 05 – B
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Laser lamp failure detection method and means

H - Electricity – 05 – B
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Laser power supply

H - Electricity – 05 – B
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Last-flash indicator switch in photoflash array

H - Electricity – 05 – B
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Layered heater system having conductive overlays

H - Electricity – 05 – B
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Layered self-regulating heating article

H - Electricity – 05 – B
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Layered system with an electrically activable layer

H - Electricity – 05 – B
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