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last 30 patents
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Patent Grant
Safety closing system for shaft door panel of an elevator installat...
Patent number
7,546,904
Issue date
Jun 16, 2009
Inventio AG
Nijs Wernas
B66 - HOISTING LIFTING HAULING
Patents Applications
last 30 patents
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Patent Application
Safety closing system for shaft door panel of an elevator installat...
Publication number
20050045430
Publication date
Mar 3, 2005
Nijs Wernas
B66 - HOISTING LIFTING HAULING