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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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