Dietmar Leeb

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Zurich, CH

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for measuring the surface hardness of building materials
- Patent number 5,176,026
- Issue date Jan 5, 1993
- Proceq S.A.
- Dietmar Leeb
- G01 - MEASURING TESTING
Information Patent Grant
Method of an apparatus for testing the hardness of materials
- Patent number 4,034,603
- Issue date Jul 12, 1977
- Proceq SA
- Dietmar Leeb
- G01 - MEASURING TESTING