Step by step switches

Follow

Industry

CPC
H04Q2213/13001

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

HELECTRICITY H04Electric communication H04QSELECTING H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems

Current Industry

H04Q2213/13001Step by step switches

Industries

Patents Grantslast 30 patents

Information Patent Grant
Method for the tranmission of message associated user-to-user infor...
- Patent number 5,289,472
- Issue date Feb 22, 1994
- AT&T Bell Laboratories
- Kon H. Cho
- H04 - ELECTRIC COMMUNICATION TECHNIQUE