US Patent: 1,043,194
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| Grinding and polishing machine
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Patentee:
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| John C. Blevney (exact or similar names) - Newark, NJ |
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Patent Dates:
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| Applied: |
Nov. 27, 1911 |
| Granted: |
Nov. 05, 1912 |
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Jeff Joslin
Vintage Machinery entry for Production Machine Co.
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Description: |
| "The present invention has for its principle object to provide an efficient apparatus for grinding and polishing objects having two or more flat surfaces, such for example as square, or other polygonally-shaped rods or tubing..." |
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