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Patents Grantslast 30 patents

Information Patent Grant
Intelligent alarm apparatus with interfacing to a telephone network
- Patent number 5,278,888
- Issue date Jan 11, 1994
- Sostel Oy
- Matti Myllymaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission system for telephone communications or data transfer
- Patent number 4,989,236
- Issue date Jan 29, 1991
- Sostel Oy
- Matti Myllymaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

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