Expansion bolt,申请号US19340705965-传众专利搜索

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发明名称	Expansion bolt
摘要
申请公布号	US1989018(A)	申请公布日期	1935.01.22
申请号	US19340705965	申请日期	1934.01.09
申请人	ANNA M. PERCIVAL	发明人	NORWOOD HARRY G.
分类号	F16B19/02	主分类号	F16B19/02
代理机构		代理人
主权项
地址

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