US Patent: 1,421,921
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| Rotary Glass Cutter
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Patentee:
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| Carl F. Doerr (exact or similar names) - Yonkers, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 22, 1921 |
| Granted: |
Jul. 04, 1922 |
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Ralph Brendler
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Description: |
| This is a glass cutting compass that features a rotating cutter head and several interesting adjustment features.
The same inventor patented an improvement to the adjuster mechanism a few weeks later (1,424,625 - 8/1/1922). |
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