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Inventor
SCHIANO ANTHONY
US
2 patents
Patents
2 patents
US6539086B2
Mar 25, 2003
System and method for completing two calls using analog interface to telephone network
AT & T CORP
0 citations
47
US6411695B1
Jun 25, 2002
System and method for completing two calls using analog interface to telephone network
AT & T CORP
0 citations
47