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US Patent: 1,254,753
Twist Drill Machine
Machine for Manufacturing Twist Drills & Other Articles
Patentee:
Charles H. Whipple (exact or similar names) - Walkerville, ON Canada

USPTO Classifications:
29/38R, 409/73, 76/5.1

Tool Categories:
tool making : making drills and augers

Assignees:
A. D. Wilt, Jr. - Detroit, MI

Manufacturer:
Not known to have been produced

Witnesses:
Thomas J. Byrne
William P. Johnson
Wilson W. Meem
Harry O. Bulkley

Patent Dates:
Applied: Apr. 23, 1914
Granted: Jan. 29, 1918

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
Description:
Kerr, Page, Cohen & Hayward - patent attorneys

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