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发明名称
Shuttle tension
摘要
申请公布号
US1840504(A)
申请公布日期
1932.01.12
申请号
US19310525912
申请日期
1931.03.28
申请人
GRAF WILLIAM A
发明人
GRAF WILLIAM A.
分类号
D03J5/24
主分类号
D03J5/24
代理机构
代理人
主权项
地址
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