Threshold,申请号US19550506546-传众专利搜索

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发明名称	Threshold
摘要
申请公布号	US2840868(A)	申请公布日期	1958.07.01
申请号	US19550506546	申请日期	1955.05.06
申请人	AMERICAN ART METALS COMPANY	发明人	MAY MAURICE
分类号	E06B1/70	主分类号	E06B1/70
代理机构		代理人
主权项
地址

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