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公开(公告)号：JPS5539497A
公开(公告)日：1980-03-19
申请号：JP11180679
申请日：1979-09-03
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： GIANKARURO BABINI , BURUNO FUATSUBURI , PAORO RUTSUSHINI
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