US Patent: 1,122,349
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Level
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Patent Dates:
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Applied: |
Aug. 04, 1913 |
Granted: |
Dec. 29, 1914 |
USPTO (New site tip) Google Patents
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Russ Allen.
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Description: |
Pivot pin for the inclinometer has point contact with the glass cover only to reduce friction and ensure that the indicator does not touch the glass.
Known example also includes Wyatt's earlier patent, 917,699 |
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