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Elevator system
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Patent number 12,139,373
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Issue date Nov 12, 2024
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Inventio AG
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Christoph Liebetrau
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B66 - HOISTING LIFTING HAULING
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Elevator system
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Patent number 12,091,284
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Issue date Sep 17, 2024
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Inventio AG
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Christoph Liebetrau
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B66 - HOISTING LIFTING HAULING
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Safety device for elevators
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Patent number 7,398,863
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Issue date Jul 15, 2008
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Inventio AG
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Christoph Liebetrau
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B66 - HOISTING LIFTING HAULING
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Elevator hoistway
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Patent number 6,516,570
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Issue date Feb 11, 2003
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Inventio AG
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Christoph Liebetrau
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E04 - BUILDING
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Elevator guide apparatus
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Patent number 6,006,867
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Issue date Dec 28, 1999
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Inventio AG
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Utz Richter
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B66 - HOISTING LIFTING HAULING
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Connecting apparatus for profile members
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Patent number 5,988,930
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Issue date Nov 23, 1999
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Inventio AG
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Christoph Liebetrau
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Brake triggering device
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Patent number 5,937,973
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Issue date Aug 17, 1999
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Inventio AG
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Christoph Liebetrau
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B66 - HOISTING LIFTING HAULING
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Appendable elevator system
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Patent number 5,833,031
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Issue date Nov 10, 1998
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Inventio AG
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Christoph Liebetrau
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B66 - HOISTING LIFTING HAULING
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