US Patent: 973,216
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| Electromechanical device
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Patentee:
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| George H. Rowe (exact or similar names) - Berwyn, IL |
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Patent Dates:
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| Applied: |
Oct. 17, 1908 |
| Granted: |
Oct. 18, 1910 |
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Jeff Joslin
Vintage Machinery entry for Electro-Magnetic Tool Co.
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Description: |
| Improvements to patent 894,782 to eliminate the air gap in the magnetic circuit, which allows the device to be made lighter and more compact. The present patent's innovations were improved in patent 938,709, which was issued much more quickly than this one was. |
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