Bernard Borisof

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Self-adhering educational devices for constructing letters, figures...
- Patent number 4,273,537
- Issue date Jun 16, 1981
- Bernard Borisof
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Self-adhering sticks, plates and other educational devices for cons...
- Patent number 4,259,790
- Issue date Apr 7, 1981
- Bernard Borisof
- A63 - SPORTS GAMES AMUSEMENTS