Screwdriver
US11059162B2 · kind B2 · utility
5Cited by
79References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2018 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Apr 3, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/0042
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A screwdriver comprises a handle including a butt and a shank extending from the handle and including a tip. The butt includes a first indicating element having a shape corresponding to the tip and a plurality of second indicating elements arranged around the first indicating element. Each of the second indicating elements has the shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.