US Patent: 373,705
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| Micrometer Gage
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Patentee:
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| John Peru Brice Wells (exact or similar names) - Thomaston, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 17, 1887 |
| Granted: |
Nov. 22, 1887 |
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Joel Havens
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Description: |
| My invention relates to an improvement in micrometer calipers, the object being to produce an instrument adapted to compensate for wear without disturbing its graduations, and to be easily and quickly adjusted, available for a wide range of precise measurements, and combining simplicity of construction with durability and general efficiency in use.
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