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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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