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DK1818C
(en)
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Electric Shunt Bow Lamp.
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ES22117A1
(en)
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Improvements in incandescent electric lamps.
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ES23005A1
(en)
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Lamps improvements.
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ES23576A1
(en)
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Improvements in electric arc lamps.
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ES23578A1
(en)
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Improvements in electric arc lamps.
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|
ES23598A1
(en)
|
|
Improvements in electric arc lamps.
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|
ES23599A1
(en)
|
|
Improvements in electric arc lamps.
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|
CH16928A
(en)
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|
Electric transporter
|
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ES22597A1
(en)
|
|
Improvement in incandescent electric lamps.
|
|
ES23282A1
(en)
|
|
Reflector improvements.
|
|
CH16542A
(en)
|
|
Improved incandescent lamp
|
|
ES25242A1
(en)
|
|
Improvements in electric lamps.
|
|
ES24588A1
(en)
|
|
Improvements in electric lamps.
|
|
ES25363A1
(en)
|
|
Improvements in electric incandescent lamps.
|
|
ES23093A1
(en)
|
|
Improvements in alternative current transformers.
|
|
ES27382A2
(en)
|
|
Improvements in electric lamps.
|
|
DK1964C
(en)
|
|
Electric Incandescent.
|
|
DK2152C
(en)
|
|
Electric Bulb.
|
|
DK2184C
(en)
|
|
Electric Bulb.
|
|
GB189827177A
(en)
|
|
Improvements in Candlesticks.
|
|
ES21145A1
(en)
|
|
Improvement in electric incandescent lamps.
|
|
CH16327A
(en)
|
|
Electric arc lamp
|
|
CH15960A
(en)
|
|
Improved Electric Light Bulb
|
|
ES22814A1
(en)
|
|
An improvement introduced in electric incandescent lamps.
|
|
CH17967A
(en)
|
|
Advanced match
|