Roger V. Jacobsen

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Printed image creating the perception of depth
- Patent number 5,181,745
- Issue date Jan 26, 1993
- Gary A. Jacobsen
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Pivotless wheel indicia display device
- Patent number 5,152,090
- Issue date Oct 6, 1992
- Jacobsen; Gary
- Roger V. Jacobsen
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Pivotless wheel indicia display device
- Patent number 4,958,455
- Issue date Sep 25, 1990
- Jacobsen; Gary
- Roger V. Jacobsen
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS