US Patent: 335,214
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| Micrometer Calipers
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Patentee:
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| Edward S. Cobb (exact or similar names) - Terre Haute, IN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 24, 1885 |
| Granted: |
Feb. 02, 1886 |
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Joel Havens
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Description: |
| My invention relates to improvements in micrometer-calipers in which there is employed a micrometer-screw and points, between articles whose dimensions are required may be accurately adjusted. The dimension in thousandths of an inch is then read from the circumference of the thumb-wheel on the micrometer-screw and the graduations on a certain bar or slide. |
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