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Patent number:
Patent Date:
CA Patent: CA-21,981
Screw plate
Patentee:
George L. Reece (
exact
or
similar
names) - Derby Line, VT
USPTO Classifications:
Tool Categories:
industrial tools
:
taps and dies
metalworking tools
:
taps and dies
Assignees:
H. Stewart Haskell
- Derby Line, VT
Frederick D. Butterfield
- Derby Line, VT
Manufacturer:
Butterfield & Co.
- Derby Line, VT
Witnesses:
Unknown
Patent Dates:
Granted:
Jul. 03, 1885
Patent Pictures:
CIPO Data
Report data errors or omissions to steward Jeff Joslin
"Vintage Machinery" entry for Butterfield & Co.
Description:
This is the Canadian equivalent of US patent
320,693
.
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