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发明名称
Schaltungsanordnung fuer Tuersprechanlagen-Umschaltautomaten
摘要
申请公布号
DE1172736(B)
申请公布日期
1964.06.25
申请号
DE1962H047579
申请日期
1962.12.04
申请人
HANDELSKONTOR HEIDER G.M.B.H.
发明人
WITTIG GERHART
分类号
H04M11/02
主分类号
H04M11/02
代理机构
代理人
主权项
地址
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