US Patent: 1,134,511
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Valve-grinder
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Patentee:
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George K. Carlson (exact or similar names) - New York, NY |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Dec. 12, 1914 |
Granted: |
Apr. 06, 1915 |
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George Langford
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Description: |
Inventor Carlson describes himself as "a subject of the Emperor of Russia, residing at New York." |
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