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发明名称
Arrow
摘要
申请公布号
US2277743(A)
申请公布日期
1942.03.31
申请号
US19410397126
申请日期
1941.06.07
申请人
BURNS CROSSMAN ROBERT
发明人
CROSSMAN ROBERT BURNS
分类号
F42B6/06
主分类号
F42B6/06
代理机构
代理人
主权项
地址
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