US Patent: 713,062
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| Machine for folding metal strips
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Patentee:
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| Elmer M. Cobb (exact or similar names) - Portland, ME |
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Patent Dates:
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| Applied: |
Apr. 05, 1902 |
| Granted: |
Nov. 11, 1902 |
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Jeff Joslin
Vintage Machinery entry for L. F. Grammes & Sons
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Description: |
| This sheet metal folder is intended for "apply metal strips to the edge of a sheet of paper by means of a double fold. It is common in the manufacture of calendars, placards, and other like material intended to be hung on the wall to bind them with a narrow sheet-metal strips folded twice for the purpose of giving it a firm hold on the paper..." |
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