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Patent number:
Patent Date:
CA Patent: CA-24,874
Combined drill and bit shank and holder
Patentee:
Simon Peter Graham (
exact
or
similar
names) - Galt, ON Canada
USPTO Classifications:
Tool Categories:
metalworking machines
:
drilling and boring
:
drill bits
:
metalworking twist drills
woodworking machines
:
wood drilling and boring
:
drill presses
:
drill press chucks
metalworking machines
:
drilling and boring
:
drill presses
:
drill press chucks
Assignees:
None
Manufacturer:
Graham Twist Drill Co.
- Detroit, MI
Witnesses:
Earl Hayden
A. Edmunds
P. J. Edmunds
Patent Dates:
Applied:
Jul. 06, 1885
Granted:
Sep. 03, 1886
Patent Pictures:
CIPO Data
Report data errors or omissions to steward Jeff Joslin
Description:
This is the Canada equivalent of US patent
339,544
; see that entry for more information on this invention.
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