US Patent: 1,369,652
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Line and Surface Level Octagon Line & Surface Level
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Patentee:
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Frank Barr Hall (exact or similar names) - Geneva, OH |
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Patent Dates:
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Applied: |
Jul. 22, 1920 |
Granted: |
Feb. 22, 1921 |
Patent Pictures:
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Russ Allen.
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Description: |
Aluminum level designed with hangers to allow use as a line level and with a flat bottom surface to allow it to be used as a surface level. Known example weighed 1/2 oz was supplied in a tin box with a "rack" to secure it in the box as well as apparently to also use it as a base. |
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