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发明名称	AIR VALVE FOR SEWAGE
摘要
申请公布号	JPS6458888(A)	申请公布日期	1989.03.06
申请号	JP19870217067	申请日期	1987.08.31
申请人	MAEZAWA IND INC	发明人	NUMATA MASATO;ARAKI MIKIO;ISHIHARA MANABU
分类号	F16K24/00	主分类号	F16K24/00
代理机构		代理人
主权项
地址

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