US Patent: 1,212,735
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Spirit-Level
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Patentees:
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Christian Bodmer (exact or similar names) - New Britain, CT |
Albert W. Ritter (exact or similar names) - New Britain, CT |
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Patent Dates:
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Applied: |
May 31, 1916 |
Granted: |
Jan. 16, 1917 |
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Ralph Brendler
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Description: |
This patent covers a new method of manufacturing levels, where one or more vials are mounted in a metal housing which fits into counterbored holes in the level stock.
The basic design here is not new (Stanley and others had been using it for years), but the design of the inserts is different. Of particular interest here is the half-circle insert. This allows two vials to be inserted into the same opening. |
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