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CA116795A
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Polychromatic screen
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US916467A
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Process of producing polychromatic screens.
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CA101923A
|
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Sensitive plate for photgraphy in colours
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US853643A
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Photographic paper.
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US877351A
|
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Sensitive plate for color photography.
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US822532A
|
|
Photographic plate for color photography.
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US705771A
|
|
Projecting apparatus.
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US708775A
|
|
Panoramic photographic apparatus.
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US656197A
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Carbureter for petroleum or other engines.
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US659820A
|
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Process of making persulfate of sodium.
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US634560A
|
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Photographic apparatus.
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CA55868A
|
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Photographic apparatus
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GB189421336A
|
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An Improved Hair Dye.
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