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Patent number:
Patent Date:
US Patent: 3,690,568
Wood grinding
Patentee:
Donald K. Alexander (
exact
or
similar
names) - Thunder Bay, ON Canada
USPTO Classifications:
241/15
,
241/28
,
241/282
,
241/34
Tool Categories:
specialty machines
:
paper making machines
woodworking machines
:
specialty woodworking machines
:
wood grinding machines
Assignees:
Koehring-Waterous Ltd.
- Brantford, ON Canada
Norton Co. of Canada
- Hamilton, ON Canada
Great Lakes Paper Co., Ltd.
- Thunder Bay, ON Canada
Montague Machine Co.
- Turners Falls, MA
Norton Co.
- Worcester, MA
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Nov. 17, 1970
Granted:
Sep. 12, 1972
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Norton Co.
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