Horizontal swinging gate-supported yieldable barrier,申请号US19380241523-传众专利搜索

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发明名称	Horizontal swinging gate-supported yieldable barrier
摘要
申请公布号	US2311967(A)	申请公布日期	1943.02.23
申请号	US19380241523	申请日期	1938.11.21
申请人	SAWYER EMERSON D	发明人	SAWYER EMERSON D.
分类号	B61L29/02	主分类号	B61L29/02
代理机构		代理人
主权项
地址

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