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发明名称
Helical connecter
摘要
申请公布号
US1901747(A)
申请公布日期
1933.03.14
申请号
US19290397610
申请日期
1929.10.05
申请人
HOLT WILLIAM A
发明人
HOLT WILLIAM A.
分类号
A47C23/053
主分类号
A47C23/053
代理机构
代理人
主权项
地址
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