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Erhard Wielandt
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Kirchheim, DE
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last 30 patents
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Patent Grant
Leaf-spring optical seismometer using fringe signals for seismic me...
Patent number
9,250,118
Issue date
Feb 2, 2016
The Regents of the University of California
Mark A. Zumberge
G01 - MEASURING TESTING
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Patent Application
OPTICAL SEISMOMETER
Publication number
20120247213
Publication date
Oct 4, 2012
Mark A. Zumberge
G01 - MEASURING TESTING