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发明名称
Means for forming spacing bands
摘要
申请公布号
US2264507(A)
申请公布日期
1941.12.02
申请号
US19380242167
申请日期
1938.11.25
申请人
CLARK EQUIPMENT COMPANY
发明人
BURGER FREDERICK W.
分类号
B21D5/08
主分类号
B21D5/08
代理机构
代理人
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