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Patent number:
Patent Date:
US Patent: 572,445
Sectional expansion-tap
Patentee:
Benjamin W. Prentice (
exact
or
similar
names) - Worcester, Worcester County, MA
USPTO Classifications:
408/167
Tool Categories:
industrial tools
:
taps and dies
metalworking tools
:
taps and dies
Assignees:
Albert F. Prentice
- Worcester, Worcester County, MA
Vernon F. Prentice
- Worcester, Worcester County, MA
Manufacturer:
Prentice Brothers Co.
- Worcester, Worcester County, MA
Witnesses:
Simeon E. King
Charles H. Burleigh
Patent Dates:
Applied:
Mar. 10, 1896
Granted:
Dec. 01, 1896
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Prentice Bros.
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