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发明名称
摘要
申请公布号
JPS506401(U)
申请公布日期
1975.01.23
申请号
JP19730055826U
申请日期
1973.05.12
申请人
发明人
分类号
F04B49/06;F04B49/00;G05D9/00;G05D16/00;(IPC1-7):F04B49/00
主分类号
F04B49/06
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