Short round device,申请号US19460662992-传众专利搜索

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发明名称	Short round device
摘要
申请公布号	US2589250(A)	申请公布日期	1952.03.18
申请号	US19460662992	申请日期	1946.04.18
申请人	HEENAN ROBERT C	发明人	HEENAN ROBERT C.
分类号	F41A9/58	主分类号	F41A9/58
代理机构		代理人
主权项
地址

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