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US Patent: 304,945
Screw Threading Machine
Patentee:
Eli J. Manville (exact or similar names) - Waterbury, New Haven County, CT

USPTO Classifications:
470/68

Tool Categories:
metalworking machines : metal threading machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
R. C. Manville
M. H. Brennan
N. A. Clark
George P. Cooper, Jr.

Patent Dates:
Applied: Feb. 15, 1884
Granted: Sep. 09, 1884

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Manville Bros. Co.

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