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发明名称
IMPROVEMENTS IN THE DRAWING OF HOLLOW-WARE FROM SHEET METAL
摘要
申请公布号
GB1200226(A)
申请公布日期
1970.07.29
申请号
GB19670037506
申请日期
1967.08.15
申请人
ROTARY PROFILE ANSTALT
发明人
分类号
B21D22/20;B21D22/22
主分类号
B21D22/20
代理机构
代理人
主权项
地址
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