US Patent: 813,095
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Trammel
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Patentee:
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John F. Hottman (exact or similar names) - Dubuque, IA |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Apr. 07, 1905 |
Granted: |
Feb. 20, 1906 |
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Russ Allen.
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Description: |
Adjustment/set screws on each side of the trammel point that allows precise adjustment. |
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