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Patent number:
Patent Date:
CA Patent: CA-222,025
Differential gearing
Patentee:
John S. Alcorn (
exact
or
similar
names) - Waltham, MA
USPTO Classifications:
Tool Categories:
Assignees:
John S. Alcorn
- Waltham, MA
Charles S. Farquhar
- Boston, MA
Robert J. Lynd
- Somerville, MA
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Granted:
Aug. 08, 1922
Patent Pictures:
CIPO Data
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Alcorn & Ames; Alcorn Machine Co.
Description:
This is the Canadian equivalent of US patent
1,354,937
.
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