Richard Ullmann

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Puchheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
High-pressure discharge lamp with a halide fill including life-exte...
- Patent number 5,461,281
- Issue date Oct 24, 1995
- Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbH
- Dietrich Fromm
- H01 - BASIC ELECTRIC ELEMENTS