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发明名称
TRAPEZOID INVERTING GATE
摘要
申请公布号
JPS56159409(A)
申请公布日期
1981.12.08
申请号
JP19800061593
申请日期
1980.05.08
申请人
ASAHI TEKKOSHO KK
发明人
SATOU SUNAO;ARAI OSAMU
分类号
E02B7/40
主分类号
E02B7/40
代理机构
代理人
主权项
地址
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