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John Stephen Lanphear
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Lawrence, MI, US
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Patents Grants
last 30 patents
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Patent Grant
Adjustable staircase and height-adjustable platform with adjustable...
Patent number
9,562,358
Issue date
Feb 7, 2017
John Stephen Lanphear
John Stephen Lanphear
E04 - BUILDING
Patents Applications
last 30 patents
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Patent Application
Adjustable Staircase and Height-Adjustable Platform with Adjustable...
Publication number
20150211234
Publication date
Jul 30, 2015
John Stephen Lanphear
E04 - BUILDING