Detachable folding keyboard device
US5574481A · kind A · utility
73Cited by
1References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1994 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Jan 31, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2223/052
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A detachable folding keyboard device includes a base frame unit consisted of a left base frame and a right base frame, a keyboard unit consisted of a left keyboard and a right keyboard respectively supported on the left and right base frames, connecting devices connected between the left and right frames for permitting the left and right keyboards to be end matched, or to be set apart and spread out like a fan, or to be folded up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.