Ameritech Corporation

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Patents Grantslast 30 patents

Information Patent Grant
Method of connecting a plurality of virtual networks
- Patent number 5,917,899
- Issue date Jun 29, 1999
- Ameritech Corporation
- John Wesley Moss
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Business paper
- Patent number D410950
- Issue date Jun 15, 1999
- Ameritech Corporation
- Lois Kraus
- D19 - Office supplies
Information Patent Grant
Method and system for detecting a change in at least one telecommun...
- Patent number 5,881,138
- Issue date Mar 9, 1999
- Ameritech Corporation
- James A. Kearns
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Trademarklast 30 trademarks