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Freidrich Geiser
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last 30 patents
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Patent Grant
Vacuum valve
Patent number
8,657,256
Issue date
Feb 25, 2014
VAT Holding AG
Freidrich Geiser
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
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Patent Application
VACUUM VALVE
Publication number
20120298904
Publication date
Nov 29, 2012
VAT HOLDING AG
Freidrich Geiser
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...