US Patent: 658,540
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Rotary Nut
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Patentees:
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Frederich Wilhelm Bühne (exact or similar names) - Freiburg, Baden-Württemberg, Germany |
August Ritz (exact or similar names) - St. Georgen, Schwarzwald-Baar County, Baden-Württemberg, Germany |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Jun. 12, 1900 |
Granted: |
Sep. 25, 1900 |
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Joel Havens
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