Assignee

DREWS RALF

DE·1 granted patent·7 citations·filing 2008–2008

Technology mixA62B1 A62C1 G01D1 H04N1

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0176US8212211B2System for protecting and/or guiding persons in dangerous situationsDREWS RALF·Filed 2008·Granted Jul 3, 2012·7 cites·20 claims

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