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发明名称
Loose leaf fastener
摘要
申请公布号
US1917569(A)
申请公布日期
1933.07.11
申请号
US19320602999
申请日期
1932.04.04
申请人
C. L. BARKLEY & CO.
发明人
BARKLEY PEYTON H.
分类号
B42F13/08
主分类号
B42F13/08
代理机构
代理人
主权项
地址
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