US Patent: 948,232
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| Level Attachment for Straight-Edges
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Patentee:
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| Olaf H. Lund (exact or similar names) - San Francisco, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 22, 1909 |
| Granted: |
Feb. 01, 1910 |
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Ralph Brendler
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Description: |
| This is a simple level vial that can be attached to any straight edge to make an impromptu level. The main claim to the patent is the unusual adjustment mechanism used for the vial. |
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