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发明名称
COVER LID FOR SEWAGE TREATMENT PLANT
摘要
申请公布号
JPH0380979(A)
申请公布日期
1991.04.05
申请号
JP19890218253
申请日期
1989.08.24
申请人
SEKISUI CHEM CO LTD
发明人
WAKIMOTO TORU;ONISHI KUNIAKI
分类号
C02F1/00
主分类号
C02F1/00
代理机构
代理人
主权项
地址
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