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发明名称
Method of making an artillery steel wheel
摘要
申请公布号
US1971018(A)
申请公布日期
1934.08.21
申请号
US19310563315
申请日期
1931.09.17
申请人
BUDD WHEEL COMPANY
发明人
ROSENBERG RALPH H.
分类号
B21D53/26
主分类号
B21D53/26
代理机构
代理人
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