Dean J. Hirschfield

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Display coin holder assemblies
- Patent number 4,378,876
- Issue date Apr 5, 1983
- Bela G. Szabo
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Plastic containers for small valuable articles
- Patent number 4,320,831
- Issue date Mar 23, 1982
- Bela G. Szabo
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS