Safety apparatus of the barrier type,申请号US19560625036-传众专利搜索

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发明名称	Safety apparatus of the barrier type
摘要
申请公布号	US2824719(A)	申请公布日期	1958.02.25
申请号	US19560625036	申请日期	1956.11.29
申请人	NUTTING LESLIE J	发明人	NUTTING LESLIE J.
分类号	E01F13/02	主分类号	E01F13/02
代理机构		代理人
主权项
地址

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