John Leslie Perkins

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St Kilda, AU

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Patents Grantslast 30 patents

Information Patent Grant
Software controlled switch device
- Patent number 6,614,889
- Issue date Sep 2, 2003
- Exfax Technologies Pty. Ltd.
- John Leslie Perkins
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Modem device for use with a facsimile machine combined with a PC
- Patent number 5,696,600
- Issue date Dec 9, 1997
- Exfax Technologies Pty Ltd
- John Leslie Perkins
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Modem device for communication of facsimile or file data
- Patent number 5,452,106
- Issue date Sep 19, 1995
- Exfax Technologies Ltd Pty
- John L. Perkins
- H04 - ELECTRIC COMMUNICATION TECHNIQUE