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发明名称
TELEPHONE SYSTEM FOR ELEVATORS
摘要
申请公布号
JPS5241337(A)
申请公布日期
1977.03.30
申请号
JP19750116467
申请日期
1975.09.29
申请人
HITACHI LTD
发明人
YUMINAKA TAKEO;NAKAMURA HATSUYA;AOKI MITSUHARU
分类号
H04M11/04;B66B3/00;B66B5/00
主分类号
H04M11/04
代理机构
代理人
主权项
地址
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