US Patent: 824,109
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Spirit-Level
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Patentee:
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Allen T. Gibson (exact or similar names) - Hodges, TX |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Aug. 12, 1905 |
Granted: |
Jun. 26, 1906 |
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Ralph Brendler
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Description: |
This inclinometer features an unusual rotating level vial for masuring angles, as well as a standard plumb and level and a compass. |
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