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Patent number:
Patent Date:
CA Patent: CA-235,280
Boring mill
Patentee:
Albert W. Parkes (
exact
or
similar
names) - Dundas, ON Canada
USPTO Classifications:
Tool Categories:
metalworking machines
:
drilling and boring
:
vertical boring mills
Assignees:
John Bertram & Sons Co.
- Dundas, ON Canada
Manufacturer:
John Bertram & Sons Co.
- Dundas, ON Canada
Witnesses:
Unknown
Patent Dates:
Granted:
Oct. 30, 1923
Patent Pictures:
CIPO Data
Report data errors or omissions to steward Jeff Joslin
"Vintage Machinery" entry for John Bertram & Sons Co.
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