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US Patent: 2,622,484
Worm Gear Cutting Attachment for Milling Machines
Patentee:
David M. Birrell (exact or similar names) - Johannesburg, Union of South Africa

USPTO Classifications:
409/3, 409/41, 74/813R

Tool Categories:
metalworking machines : milling machines : milling machine accessories

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Jan. 25, 1950
Granted: Dec. 23, 1952

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
Description:
Ernest E. Carver - patent attorney

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