US Patent: 1,218,749
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| Projectographoscope
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Patentee:
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| William L. Deming (exact or similar names) - Salem, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 15, 1915 |
| Granted: |
Mar. 13, 1917 |
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Jeff Joslin
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Description: |
| William L. Deming was probably son of the founder of woodworking machinery maker Silver & Deming, which split in 1890 into Silver Mfg. Co. and The Deming Co. The woodworking machinery line went to Silver. |
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