Resilient structureal beam,申请号US19630272303-传众专利搜索

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发明名称	Resilient structureal beam
摘要
申请公布号	US3177620(A)	申请公布日期	1965.04.13
申请号	US19630272303	申请日期	1963.04.11
申请人	BROWN DONALD A;DOWNING JR LUCIEN R	发明人	BROWN DONALD A.;JR. LUCIEN R. DOWNING,
分类号	E04B1/82;E04B1/84;E04B2/74	主分类号	E04B1/82
代理机构		代理人
主权项
地址

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