fx-patents:fx-7372.5
Table of Contents
Patent FX-7372.5: 1833-01-17, Steam engine valve
| X Number | Date | Inventor | City | Title | Status |
|---|---|---|---|---|---|
| FX-7372.5 | 1833-01-17 | Stephen H. Long | Philadelphia, PA | Steam engine valve | Recovered |
Comments
FX patents are fractional X patents. This patent is # X7281 1/2.
Only about 2000 of the almost 10000 X-patent documents were recovered.
Because of the Patent Office fire in Dec. 1836, little is known about this patent. Only the patent drawings are available. This patent is in the database for reference only.
Information Sources
(To be filled in.)
External links
fx-patents/fx-7372.5.txt · Last modified: 2019/05/26 01:57 by 127.0.0.1