John Petter Ellingsen

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Oslo, NO

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Patents Grantslast 30 patents

Information Patent Grant
Suspension device for a sheet-shaped information medium
- Patent number 6,591,528
- Issue date Jul 15, 2003
- John Petter Ellingsen
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Suspension device for a sheet-shaped information medium
- Publication number 20020035799
- Publication date Mar 28, 2002
- John Petter Ellingsen
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS