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US Patent: 9,689X
Hydrostatic and pneumatic breaker
Patentee:
Smith Cram (exact or similar names) - New York, NY

USPTO Classifications:
188/312

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Jun. 02, 1836

Patent Pictures:
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Report data errors or omissions to steward Jeff Joslin
"Vintage Machinery" entry for Smith Cram
Description:
Of interest because Cram was a very early sawmill maker, active ca. 1798.

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