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发明名称
摘要
申请公布号
JPS551447(B2)
申请公布日期
1980.01.14
申请号
JP19750025729
申请日期
1975.03.03
申请人
发明人
分类号
F15B11/17;E02F9/20;E02F9/22;F15B11/16
主分类号
F15B11/17
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