x-patents:x-7627
Table of Contents
Patent X-7627: 1833-06-29, Grooving machine
X Number | Date | Inventor | City | Title | Status |
---|---|---|---|---|---|
X-7627 | 1833-06-29 | David D. Hanson | Ware, NH | Grooving machine | Recovered |
Comments
This is the earliest known U.S. patent for a spindle shaper.
Information Sources
(To be filled in.)
External links
x-patents/x-7627.txt · Last modified: 2019/05/25 21:49 by 127.0.0.1