US Patent: 2,456,060
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Rotor Grinder
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Patentees:
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Joseph H. Hoern (exact or similar names) - Birmingham, Oakland County, MI |
Curtis G. Pardee (exact or similar names) - Detroit, Wayne County, MI |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Dec. 29, 1945 |
Granted: |
Dec. 14, 1948 |
USPTO (New site tip) Google Patents
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Joel Havens
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