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发明名称
Machine and method of producing collapsable metal tubes
摘要
申请公布号
GB368983(A)
申请公布日期
1932.03.17
申请号
GB19310007271
申请日期
1931.03.09
申请人
LUDWIG HINKEL;KONRAD MUELLER
发明人
分类号
B21C37/06
主分类号
B21C37/06
代理机构
代理人
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