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US Patent: 1,716,331
Method of making collets
Patentee:
Byron F. Stowell (exact or similar names) - Springfield, MA

USPTO Classifications:
29/404, 72/324

Tool Categories:
work holding : collets and collet holders

Assignees:
Van Norman Machine Tool Co. - Springfield, MA

Manufacturer:
Van Norman Machine Tool Co. - Springfield, MA

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 09, 1928
Granted: Jun. 04, 1929

Patent Pictures:
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Vintage Machinery entry for Van Norman Machine Tool Co.
Description:
This invention relates to manufacturing "double ended split collets", and which are capable of fitting a larger size range than traditional collets, and which are, furthermore, hardened and tempered.

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