Inventor
KONDOH YOSHIHARU
JP3 patents
Patents
3 patentsUS5563940AOct 8, 1996
System for connecting an incoming call to a selected one of a number of extensions
HITACHI LTD14 citations78
US5541992AJul 30, 1996
System for connecting an incoming call to a selected one of a number of extensions
HITACHI LTD11 citations70
US5815564ASep 29, 1998
System for connecting an incoming call to a selected one of a number of extensions
HITACHI LTD1 citations59