![Patents](../graphics/djh_logo.gif)
Patents - Inventor Surname "Unknown"
Unknown 1867/08/07 -> 000000_04 - > ![](../images/000000_04a.jpg)
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Unknown 1887/05/10 -> 000000_07 - > ![](../images/000000_07a.jpg)
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Unknown 1887/09/27 -> 000000_08 - > ![](../images/000000_08a.jpg)
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Unknown 1891/08/04 -> 000000_09 - > ![](../images/000000_09a.jpg)
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Unknown 1892/06/14 -> 000000_10 - > ![](../images/000000_10a.jpg)
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Unknown 1897/00/00 -> 000000_11 - > ![](../images/000000_11a.jpg)
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Unknown 1908/11/06 -> 000000_12 - > ![](../images/000000_12a.jpg)
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7 Patents Listed