Patent search ap:("CSELT CENTRO STUDI LAB TELECOM") AND inv:"OTSUTABUIO BERUTOGURIO" Page 1

1.

发明专利
SYSTEM FOR TRANSMITTING COMMUNITY OF SUBSCRIBER CONTAINED IN TELEPHONE COUPLING ALONG SAID COUPLING 失效

公开(公告)号：JPS57157672A

公开(公告)日：1982-09-29

申请号：JP2468882

申请日：1982-02-19

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： OTSUTABUIO BERUTOGURIO

IPC: H04M3/42 , H04M1/57 , H04M15/06 , H04Q3/54

Patent Agency Ranking