US Patent: 363,709
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| Micrometer-Gage
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Patentee:
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| Andrew E. Whitmore (exact or similar names) - Springfield, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 05, 1886 |
| Granted: |
May 24, 1887 |
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Ralph Brendler
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Description: |
| A new method of construction for micrometers, designed to allow direct reading of inside or outside measurements.
Hermon Chapin is a witness on this patent, so it is likely that this tool was considered for production by Chapin, but it is not known if this tool was actually produced. |
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