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Elevator guide rail block assembly
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Patent number 12,129,962
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Issue date Oct 29, 2024
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Wurtec, Inc.
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Steven P. Wurth
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Elevator guide rail block assembly
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Patent number 11,821,580
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Issue date Nov 21, 2023
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Wurtec, Incorporated
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Steven P. Wurth
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Hoistway access ladder storage
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Patent number 11,697,573
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Issue date Jul 11, 2023
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Otis Elevator Company
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Jean-Emile Rocher
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Elevator systems
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Patent number 11,673,767
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Issue date Jun 13, 2023
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Otis Elevator Company
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Ralph S. Stripling
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B66 - HOISTING LIFTING HAULING
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Or relating to stairlifts
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Patent number 11,597,630
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Issue date Mar 7, 2023
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Stannah Stairlifts Limited
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Martin Thomas Piper
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B66 - HOISTING LIFTING HAULING
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