Assignee

HITACHI TELECOM TECHNOLGIES LT

JP·2 granted patents·11 citations·filing 1996–1998

Technology mixH04M2 G06F1

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2 records

0136US6044136ATelephone terminal and telephone exchange system accommodating the terminalHITACHI TELECOM TECHNOLGIES LT·Filed 1996·Granted Mar 28, 2000·10 cites·29 claims
0221US6263062B1Dealing call terminal deviceHITACHI TELECOM TECHNOLGIES LT·Filed 1998·Granted Jul 17, 2001·1 cites·5 claims

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