Assignee

SIGNAL SOFT CORP

US·1 granted patent·273 citations·filing 1999–1999

Technology mixH04B1 H04M1 H04W1

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0193US6212392B1Method for determining if the location of a wireless communication device is within a specified areaSIGNAL SOFT CORP·Filed 1999·Granted Apr 3, 2001·273 cites·14 claims

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