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发明名称
Zeichengeraet
摘要
申请公布号
DE2111711(A1)
申请公布日期
1972.09.28
申请号
DE19712111711
申请日期
1971.03.11
申请人
BARRA,HELMUT
发明人
BARRA,HELMUT
分类号
B43L7/00
主分类号
B43L7/00
代理机构
代理人
主权项
地址
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