x-patents:x-9689
Table of Contents
Patent X-9689: 1836-06-02, Hydrostatic and pneumatic breaker
| X Number | Date | Inventor | City | Title | Status |
|---|---|---|---|---|---|
| X-9689 | 1836-06-02 | Smith Cram | New York, NY | Hydrostatic and pneumatic breaker | Recovered |
Comments
Of interest because Cram was a very early sawmill maker, active ca. 1798.
Information Sources
(To be filled in.)
External links
x-patents/x-9689.txt · Last modified: 2019/05/25 21:49 by 127.0.0.1