US Patent: 413,516
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| Micrometer Calipers
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Patentee:
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| Charles P. Jennings (exact or similar names) - Bradford, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 24, 1889 |
| Granted: |
Oct. 22, 1889 |
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Joel Havens
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Description: |
| My invention relates, generally, to micrometer-calipers, and particularly to calipers, which are used in fitting one piece of machinery into another. It has for its object to improve the form of such instruments, particularly in the manner of arranging the legs and means for adjusting and setting the movable part, which carries one pair of the legs. |
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