US Patent: 1,972,359
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Feed mechanism for tool-carrying spindles
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Patentee:
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Charles F. Schenck (exact or similar names) - Toledo, OH |
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Patent Dates:
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Applied: |
Jun. 04, 1931 |
Granted: |
Sep. 04, 1934 |
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Jeff Joslin Vintage Machinery entry for Demco Machine Tool Co.
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Description: |
The assignee acquired drilling machine maker Demco Machine Tool Co. in the early 1930s; the spindle speed mechanism in the patent was presumably used on the assignee's "Demco" brand drill presses. |
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