Anchor bolt having wedge shaped expander member secured thereto,申请号US19530383259-传众专利搜索

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发明名称	Anchor bolt having wedge shaped expander member secured thereto
摘要
申请公布号	US2774273(A)	申请公布日期	1956.12.18
申请号	US19530383259	申请日期	1953.09.30
申请人	OLSON HENRY N	发明人	OLSON HENRY N.
分类号	E21D21/00;F16B13/08	主分类号	E21D21/00
代理机构		代理人
主权项
地址

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