US Patent: 1,142,054
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Valve-controller
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Patentee:
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De Witt Clinton Prescott (exact or similar names) - Chicago, IL |
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Patent Dates:
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Applied: |
Mar. 13, 1913 |
Granted: |
Jun. 08, 1915 |
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Jeff Joslin Vintage Machinery entry for Prescott Co.
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Description: |
A full-page ad features the Prescott's Valve Controller with this patent date. The ad was in the 1918-01-01 Canada Lumberman and is from the Wm. Hamilton Co., Ltd. |
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