ROBERT L. JOHNSTONE

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WEST BOOTHBAY HARBOR, ME, US

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Patents Grantslast 30 patents

Information Patent Grant
System for providing location-specific data to a user
- Patent number 5,898,680
- Issue date Apr 27, 1999
- WorldSpace, Inc.
- Robert L. Johnstone
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM FOR PROVIDING LOCATION-SPECIFIC DATA TO A USER
- Publication number 20020003495
- Publication date Jan 10, 2002
- ROBERT L. JOHNSTONE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE