US Patent: 1,436,648
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Measuring Instrument
Direct Reading Indicator
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Patentee:
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| Walter L. Chamberlain (exact or similar names) - Laurel, MT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 03, 1921 |
| Granted: |
Nov. 28, 1922 |
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Ralph Brendler
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Description: |
| This tool uses a spring-loaded arm connected to a series of gears to provide an accurate measurement on a dial.
Patent application was renewed on October 7, 1922 |
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