US Patent: 2,885,566
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Control means
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Patentees:
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Carl L. Sadler (exact or similar names) - Rockford, IL |
George G. Hermanson (exact or similar names) - Rockford, IL |
Robert H. Eisengrein (exact or similar names) - Rockford, IL |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Dec. 04, 1951 |
Granted: |
May 05, 1959 |
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Jeff Joslin
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