US Patent: 1,938,310
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| Spindle Drive for Machine Tools
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Patentees:
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| Dudley B. Bullard (exact or similar names) - Southport, Fairfield County, CT |
| Gustaf Robert Appelberg (exact or similar names) - Bridgeport, Fairfield County, CT |
| Assignees: |
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Bullard Co. - Bridgeport, Fairfield County, CT |
| Manufacturer: |
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Bullard Co. - Bridgeport, Fairfield County, CT |
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Patent Dates:
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| Applied: |
Apr. 20, 1932 |
| Granted: |
Dec. 05, 1933 |
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Joel Havens Vintage Machinery entry for Bullard Machine Tool Co.
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