METHOD AND DEVICE FOR CHECKING AIRTIGHTNESS,申请号JP19780046077-传众专利搜索

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发明名称	METHOD AND DEVICE FOR CHECKING AIRTIGHTNESS
摘要
申请公布号	JPS54138485(A)	申请公布日期	1979.10.26
申请号	JP19780046077	申请日期	1978.04.19
申请人	NIPPON GAS CO LTD	发明人	OGAWA TOSHIHARU
分类号	G01M3/28;F17D5/02	主分类号	G01M3/28
代理机构		代理人
主权项
地址

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