Daniel E. Spielberg

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Aachen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Self-drilling screw
- Patent number 6,142,719
- Issue date Nov 7, 2000
- Hilti Aktiengesellschaft
- Gerd Daubinger
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...