Willem T. Draai

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Helden-Panningen, NL

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Patents Grantslast 30 patents

Information Patent Grant
Process for magnetically transferring a powder image
- Patent number 4,254,206
- Issue date Mar 3, 1981
- OCE-van der Grinten N.V.
- Willem T. Draai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for magnetically transferring a powder image
- Patent number 4,207,101
- Issue date Jun 10, 1980
- OCE-van der Grinten N.V.
- Mathias J. J. M. Vola
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY