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CA143352A
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Vapour lamp
|
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US1058516A
|
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Vapor-burning lamp.
|
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US652204A
|
|
Gas photographing apparatus.
|
|
US652156A
|
|
Gas photographing apparatus.
|
|
GB189917522A
|
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Improvements in Apparatus for Photographing by Means of Gas and Electric Light.
|
|
GB189623039A
|
|
Improvements in Automatic Coin Freed Photographing Machines.
|
|
GB189614331A
|
|
Improvements in and connected with Electric Tramways or Railways.
|
|
GB189614332A
|
|
Improvements in Apparatus for the Use of Electric Light for Photographic, Illuminating, and other Purposes.
|
|
GB189502333A
|
|
Improvements in Apparatus for the Use of the Electric Light for photographic Purposes.
|
|
GB189414492A
|
|
An Improvement in the Chamber or Reflector for Carrying the Lamps used in Photographing by the Electric Light.
|
|
GB189405971A
|
|
Improvements in Apparatus for the Use of the Electric Light for Photographic Purposes.
|
|
GB189321379A
|
|
Improvements in the Application of Electric Light for Photographic Purposes.
|
