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US Patent: 1,275,218
Machine for Grinding Worm Threads
Patentee:
Charles H. Calkins (exact or similar names) - Ludlow, MA

USPTO Classifications:
451/222, 451/294, 451/363

Tool Categories:

Assignees:
Baush Machine Tool Co. - Springfield, MA

Manufacturer:
Not known to have been produced

Witnesses:
René Bruine

Patent Dates:
Applied: Mar. 17, 1916
Granted: Aug. 13, 1918

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Baush Machine Tool Co.
Description:
D. Anthony Usina - patent attorney

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