US Patent: 1,462,430
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| Spirit Level
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Patentee:
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| Paul Herman Vogel (exact or similar names) - New Britain, CT |
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Patent Dates:
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| Applied: |
May 12, 1921 |
| Granted: |
Jul. 17, 1923 |
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Russ Allen.
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Description: |
| Two piece casing that forms a container for holding the spirit tubes in the proper position in the body. |
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