Automatic thermogravity gas cut-off,申请号US19330651819-传众专利搜索

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发明名称	Automatic thermogravity gas cut-off
摘要
申请公布号	US1979857(A)	申请公布日期	1934.11.06
申请号	US19330651819	申请日期	1933.01.14
申请人	BENSON EARL U	发明人	BENSON EARL U.
分类号		主分类号
代理机构		代理人
主权项
地址

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