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jan 26, 2010 - #US7652627B2 System for Providing GPS Information Indoors and Method of Acquiring Indoor GPS Information by Mobile Device Inventor: Hyong-uk Choi Status: Active Award Date: 1/26/2010

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Engineering Patents

ByShelby Hiens
20 Dec 2019
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jan 26, 2010
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~ 15 years ago
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