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发明名称
Drum construction
摘要
申请公布号
US1975975(A)
申请公布日期
1934.10.09
申请号
US19330689858
申请日期
1933.09.18
申请人
THE NATIONAL SUPPLY COMPANY
发明人
RICE ALLEN ERWIN;JR. JOHN SHELBY MORGAN,
分类号
B66D1/28
主分类号
B66D1/28
代理机构
代理人
主权项
地址
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