US Patent: 928,489
|
| Screw-thread-cutting mechanism
|
|
Patentees:
|
| Robert G. Henry (exact or similar names) - Hartford, CT |
| William G. Allen (exact or similar names) - Hartford, CT |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Feb. 05, 1908 |
| Granted: |
Jul. 20, 1909 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Jeff Joslin
Vintage Machinery entry for Henry & Wright Mfg. Co.
|
|
Description: |
| This machine produces the rolled-and-cut threads on wood-screws as described in patent 877,157. |
|
