Ernst Hammel

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Voorburg, NL

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Patents Grantslast 30 patents

Information Patent Grant
Method for the purpose of producing a stencil mask
- Patent number 6,156,217
- Issue date Dec 5, 2000
- IMS Ionen Mikrofabrikations Systeme GmbH
- Ernst Hammel
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY