US Patent: 813,324
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Dynamometer
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Patentees:
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Hamilton Ruddick, deceased (Estate of) (exact or similar names) - Brooklyn, Kings County, NY |
Walter H. Ruddick, Administrator (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: |
Sep. 06, 1905 |
Granted: |
Feb. 20, 1906 |
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Joel Havens
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