Irving Panken

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Dayton, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Crayon adapted for development of latent images
- Patent number 4,525,214
- Issue date Jun 25, 1985
- The Mazer Corporation
- Irving Panken
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Fluidless masters
- Patent number 4,257,329
- Issue date Mar 24, 1981
- The Mazer Corporation
- Irving Panken
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Non-bleed pre-printed spirit duplicating masters
- Patent number 4,005,237
- Issue date Jan 25, 1977
- The Mazer Corporation
- Irving Panken
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Pre-printed latent image spirit duplicating masters
- Patent number 3,979,550
- Issue date Sep 7, 1976
- The Mazer Corporation
- Irving Panken
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Tissueless pre-printed spirit duplicating masters
- Patent number 3,962,526
- Issue date Jun 8, 1976
- The Mazer Corporation
- Irving Panken
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS