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NS Patent: NS-13
Mathematical mechanical scale to solve problems in trigonometry
Patentee:
Alexander Chisholm (exact or similar names) - Antigonish, Sidney County, NS Canada

USPTO Classifications:

Tool Categories:
rules : slide rules : scales
specialty tools : slide rules : scales

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Jul. 12, 1851

Patent Pictures:
Report data errors or omissions to steward Jeff Joslin
Description:
Nova Scotia (NS) patents were issued between 1834 and 1867, when they joined with Ontario, Quebec and New Brunswick to form the Dominion of Canada.

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