Robert A. Karsten

Follow

Person

Fox Point, WI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Signs and displays having easily interchangeable information panels
- Patent number 5,809,677
- Issue date Sep 22, 1998
- Everbrite, Inc.
- Carl H. Wamser
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Device for displaying pictures in sequence
- Patent number 5,483,765
- Issue date Jan 16, 1996
- Everbrite, Inc.
- Robert A. Karsten
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Changeable information scroll sign
- Patent number 5,003,717
- Issue date Apr 2, 1991
- Everbrite, Inc.
- Charles E. Trame
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS