US Patent: 651,057
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| Steel Square
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Patentee:
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| Artemas Roberts (exact or similar names) - Normal, NE |
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Patent Dates:
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| Applied: |
Nov. 18, 1899 |
| Granted: |
Jun. 05, 1900 |
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Patent Pictures:
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1 | 2 | 3
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Russ Allen.
"Vintage Machinery" entry for Sargent & Co.
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Description: |
| Table gives lengths of rafters having a defined pitch and a given horizontal run.
Patent date seen marked on a Sargent & Co square and Henry B. Sargent references this patent in his patent 1,102,689.
This patent appears on a Sargent VBM 500CR square (pic 2) with the 1,102,689 patent on the opposite side.
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