US Patent: 1,687,788
|
Screw Driver
Screw Gripping Screwdriver
|
|
Patentee:
|
|
| Abraham S. Pinkus (exact or similar names) - New York, NY |
|
|
Patent Dates:
|
| Applied: |
Nov. 03, 1925 |
| Granted: |
Oct. 16, 1928 |
|
Patent Pictures:
[
1 | 2 | 3
]
|
|
|
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Steve Gosselin
|
|
Description: |
| This a screw gripping screw driver, with the ability to be used one handed to install or remove screws and automatically releases the screw when it is completely installed . Sample marked on the disc,""SCROO-GRIP"trade mark,Pat.Pend.Automatic release screw-driver". |
|
){kind=link}
){kind=link}
){kind=link}