US Patent: 2,152,880
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| Thickness Gauge
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Patentees:
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| Charles R. Dowdy (exact or similar names) - Milwaukee, WI |
| Fred Doepke, estate of (deceased) (exact or similar names) - St. Petersburg, FL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 11, 1936 |
| Granted: |
Apr. 04, 1939 |
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Joel Havens
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Description: |
| Wheeler, Wheeler & Wheeler - patent attorneys
Annie Doepke, Fred C. Doepke & William G. Hanson, executors
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