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US Patent: 2,501,936
Variable-speed drive
Patentee: John D. Gayer (exact or similar names) - Dayton, OH USPTO Classifications: 475/185, 475/904 Tool Categories: electrical devices : electric motors : gear motors Assignees: Brown-Brockmeyer Co. - Dayton, OH Manufacturer: Brown-Brockmeyer Co. - Dayton, OH Witnesses: Unknown	Patent Dates: Applied: Mar. 10, 1949 Granted: Mar. 28, 1950 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Brown-Brockmeyer Co.

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