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经营范围
发明名称
TUERANLAGE, INSBESONDERE TUERSPRECHANLAGE
摘要
申请公布号
DE4019837(A1)
申请公布日期
1992.01.09
申请号
DE19904019837
申请日期
1990.06.21
申请人
A. GROTHE & SOEHNE KG, 5000 KOELN, DE
发明人
LOEDEL, GUENTER, 5630 REMSCHEID, DE;SALAH, GERD, 5300 BONN, DE
分类号
H04M1/02
主分类号
H04M1/02
代理机构
代理人
主权项
地址
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