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发明名称
Vorrichtung zum Einschneiden rechteckiger Fenster in Bleche, Folien u. dgl.
摘要
申请公布号
DE1281989(B)
申请公布日期
1968.11.07
申请号
DE196300S3793
申请日期
1963.02.18
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
ERTL WILHELM
分类号
B21D28/14
主分类号
B21D28/14
代理机构
代理人
主权项
地址
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