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US Patent: 57,531
Improvement in pump-pistons
Patentee:
Sylvester G. Mason (exact or similar names) - Elbridge, NY

USPTO Classifications:
417/524

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. G. McGowan
D. Bonta
Patent Dates:
Granted: Aug. 28, 1866

Patent Pictures:
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Mason & Pierce
Description:
Of interest because Sylvester Mason was a partner in machinery maker Mason & Pierce.

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