Gas valve safety shutoff,申请号US19450597263-传众专利搜索

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发明名称	Gas valve safety shutoff
摘要
申请公布号	US2437163(A)	申请公布日期	1948.03.02
申请号	US19450597263	申请日期	1945.06.02
申请人	A. O. SMITH CORPORATION	发明人	KOPPEL ERNST R.
分类号		主分类号
代理机构		代理人
主权项
地址

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