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Photographic Device.
Patent for a photographic device, which allows multiple exposures to be made on a surface in a camera.
Date:
December 12, 1911
Creator:
Smith, William N.
System:
The Portal to Texas History
Horse-Detacher
Patent for a horse detacher for horse-drawn vehicles. Illustrations included.
Date:
June 6, 1911
Creator:
Lindsey, John M.
System:
The Portal to Texas History