US Patent: 4,043,547
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| Precision machine vise
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Patentees:
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| William S. Griffith (exact or similar names) - Chicago, IL |
| Frank A. Glomb (exact or similar names) - Thornton, IL |
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Patent Dates:
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| Applied: |
Dec. 10, 1976 |
| Granted: |
Aug. 23, 1977 |
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Carl Matthews
"Vintage Machinery" entry for Palmgren Steel Products, Inc.
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Description: |
| The assignee and manufacturer was Chicago Tool & Engineering Co., which eventually became Palmgren Steel Products Co. |
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