FR758644A
(en)
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Improvements to electric lamps
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FR752588A
(en)
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Light electric tube
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FR800793A
(en)
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Electric lamps
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FR796191A
(en)
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Light switch
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FI14687A
(en)
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Gasfyllda electric light bulb
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CH204632A
(en)
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Electric light bulb.
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FR756993A
(en)
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Electrical switches
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FI15168A
(en)
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Electric light bulb
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FI15568A
(en)
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Electric light bulb
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FI17242A
(en)
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Gasfylld electric light bulb
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DK52067C
(en)
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Gas-filled electric light bulb.
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CH160286A
(en)
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Gas-filled electric light bulb.
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FR748391A
(en)
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Light reflector
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DK48850C
(en)
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Electric Discharge Lamp.
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CH205006A
(en)
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Electric light bulb.
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ES1427Y
(en)
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Electric lamp.
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GR3713B
(en)
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ELECTRIC LAMP.
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DK48546C
(en)
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Electric Bulb.
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BE387361A
(en)
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Light switch
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DK48454C
(en)
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Electric Projector Bulb.
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ES126764A1
(en)
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Incandescent electric lamp.
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FI12831A
(en)
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Electric light bulb
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DK50681C
(en)
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Electric Fluorescent Light System.
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FR761066A
(en)
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Light reflector
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FR748879A
(en)
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Light reflector
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