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Thomas Dittrich
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Berlin, DE
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last 30 patents
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Patent Grant
High pressure discharge bulb
Patent number
5,847,510
Issue date
Dec 8, 1998
Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen mbH
Hans-Werner Goelling
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Metal-halide discharge lamp for photooptical purposes
Patent number
5,691,601
Issue date
Nov 25, 1997
Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbH
Anna-Maria Frey
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Metal halide gas discharge lamp for projection purposes
Patent number
5,689,154
Issue date
Nov 18, 1997
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
Clemens Barthelmes
H01 - BASIC ELECTRIC ELEMENTS