US Patent: 2,080,859
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| Dovetail Milling Machine
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Patentees:
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| Otto Drapák (exact or similar names) - Reichenberg, Czechoslovakia |
| Arnošt Drapák (exact or similar names) - Rochlitz, Czechoslovakia |
| Jindřich Drapák (exact or similar names) - Rochlitz, Czechoslovakia |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 03, 1934 |
| Granted: |
May 18, 1937 |
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Joel Havens
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Description: |
| Reichenberg is now Liberec in the Czech Republic. |
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