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GB191404230A
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Method of Lighting Intense Current Arcs by Means of Currents of Less intensity and High Frequency.
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GB191104513A
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Apparatus for Securing Ships' Cabins and Preventing the Perpendicular Movements of the same.
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US888098A
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Automatic phototelegraph.
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GB190708727A
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An Improved Method of Telegraphically Transmitting Photographs and the like and System therefor.
|
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US851174A
|
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Telautograph.
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GB190701548A
|
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Improvements in or relating to Telautographic Systems.
|
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US884501A
|
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Means for measuring the degree of exposure of a selenium-cell.
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GB190616343A
|
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Improvements relating to Methods of Measuring the Exposure of a Selenium Cell, and to the Application to Photometry, Photo-telegraphy and the like
|
|
US785221A
|
|
Automatic telegraphy.
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GB190323876A
|
|
Improvements in or relating to Autographic and other Telegraph Systems
|
|
GB190201325A
|
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A New or Improved Method and Apparatus for the production of Phototelegraphic Images, Pictures or Records
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