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US Patent: 893,601
Press
Patentee:
George J. Blum (exact or similar names) - Chicago, IL

USPTO Classifications:
83/548, 83/573, 83/632

Tool Categories:
metalworking machines : metalworking presses : punch presses
metalworking machines : metal shearing machines

Assignees:
Armstrong-Blum Mfg. Co. - Chicago, IL

Manufacturer:
Not known to have been produced

Witnesses:
C. Paul Parker
George L. Chindahl
Patent Dates:
Applied: Apr. 22, 1907
Granted: Jul. 21, 1908

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Armstrong-Blum Mfg Co.

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