Donald H. Pfefferle

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Williamsport, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Photoflash unit having flashlamps using looped lead-in wires for re...
- Patent number 4,282,559
- Issue date Aug 4, 1981
- GTE Products Corporation
- Emery G. Audesse
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photoflash unit with secured insulator
- Patent number 4,152,751
- Issue date May 1, 1979
- GTE Sylvania Incorporated
- Ronald E. Sindlinger
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY