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发明名称
Drum
摘要
申请公布号
US2655071(A)
申请公布日期
1953.10.13
申请号
US19510255190
申请日期
1951.11.07
申请人
EUGENE LEVAY
发明人
LEVAY EUGENE
分类号
G10D13/02
主分类号
G10D13/02
代理机构
代理人
主权项
地址
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