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FR877315A
(en)
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Improvements to lamp bases
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CH221735A
(en)
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Gas-filled electric light bulb for series connection.
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FI18904A
(en)
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Gasfylld electric light bulb
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FI18884A
(en)
|
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Electric strap light bulb
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FI18959A
(en)
|
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Gasfylld electric light bulb
|
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FI20818A
(en)
|
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Electric light bulb
|
|
CA387872A
(en)
|
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Flash lamp
|
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GR9154B
(en)
|
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VOLUME LIGHTING ELECTRIC LAMP.
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FR921727A
(en)
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Electric light source
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FR971934A
(en)
|
|
Improvement in electric lamps
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|
FR875777A
(en)
|
|
Photometer
|
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ES150679A1
(en)
|
|
AN ELECTRICAL LAMP
|
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GR8759B
(en)
|
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LONG DURATION ELECTRIC LAMP.
|
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FR865435A
(en)
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|
Light source
|
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GR9358B
(en)
|
|
LIGHTING DARKING LAMPS.
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ES150639A3
(en)
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AN IMPROVEMENT IN THE MANUFACTURE OF ELECTRIC LAMPS
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|
CH217335A
(en)
|
|
Portable electric lamp.
|
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FR864601A
(en)
|
|
Electric light tube
|
|
GR9445B
(en)
|
|
ELECTRIC LAMP WITHOUT SWITCH.
|
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DK60269C
(en)
|
|
Electric Light Buoy.
|
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GR8758B
(en)
|
|
ELECTRIC LAMP FOR INCREASED DURATION.
|
|
GR7472B
(en)
|
|
ELECTRIC LIGHTING ELECTRIC LAMP.
|
|
GR9352B
(en)
|
|
POCKET ELECTRIC LAMP.
|
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DK59723C
(en)
|
|
Lamp case.
|
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CA387871A
(en)
|
|
Flash lamp
|