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US Patent: 60,762
Improvement in tempering steel springs
Patentee:
Cephas Manning (exact or similar names) - West Albany, NY

USPTO Classifications:
148/29

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
David Caswell
J. A. Simons
Patent Dates:
Granted: Jan. 01, 1867

Patent Pictures:
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Description:
This patent is of interest because the inventor previously patented cooperage machinery.

This patent covers the use of a linseed oil and salt bath to temper wagon-springs.

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