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发明名称
Arrow fletchings
摘要
申请公布号
US2887319(A)
申请公布日期
1959.05.19
申请号
US19530383250
申请日期
1953.09.30
申请人
NAT LAY, INC.
发明人
LAY NATHANIEL B.
分类号
F42B6/06
主分类号
F42B6/06
代理机构
代理人
主权项
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