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US975040A
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Process for removing oxygen from vessels.
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GB190908146A
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Improved Process for Manufacturing Electric Incandescent Lamps.
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GB190629616A
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Improvements in and relating to Incandescent Electric Lamps containing Mercury-vapour or the like.
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GB190610457A
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Process of Manufacturing Coils for Electric Purposes.
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GB190503401A
|
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Improvements in and relating to Resistances for Electric Current.
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GB190307831A
|
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Improved Process for Manufacturing Electrodes for Arc-lamps.
|
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GB190226071A
|
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Improvements in the Manufacture of Arc-lamp Electrodes
|
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GB190213088A
|
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Improvements in Electric Arc Lamps.
|
|
US757659A
|
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Electric-arc lamp.
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US700495A
|
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Electrode for arc-lamps.
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US700649A
|
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Electrode for arc-lamps.
|
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GB190203336A
|
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Improvements in Electrical Resistances
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CA80334A
|
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Manufacture of carbide electrodes for arc lamps
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CA80335A
|
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Manufacture of carbide electrodes for arc lamps
|
|
US739181A
|
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Electric resistance apparatus.
|
|
GB190126535A
|
|
Improvements in and in the Manufacture of Electrodes for Arc Lamps.
|
|
GB190126487A
|
|
Carbide Electrodes for Arc Lamps and Process of Manufacturing the same
|
|
CA259106A
|
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Method of preventing the scorification of fire-bars and grate surfaces
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