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Inventor
STAEMMER ZENO
CH
2 patents
Patents
2 patents
US7542756B2
Jun 2, 2009
Apparatus and method for restoring a conference connection to a cellular telephone
SIEMENS COMM INC
11 citations
79
US7437141B2
Oct 14, 2008
Apparatus and method for easily restoring a connection to a telephone
SIEMENS COMM INC
2 citations
58