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US Patent: 3,197,220
Chuck apparatus
Patentee:
Victor H. Peterson (exact or similar names) - Watertown, MA

USPTO Classifications:
279/121

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 10, 1963
Granted: Jul. 27, 1965

Patent Pictures:
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Vintage Machinery entry for Victor Mfg. Co.
Description:
Of interest because the inventor had developed and patented a variable-speed drill; see patent 1,842,194. The inventor's mailing address is given as 183 High St., Boston.

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