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发明名称
摘要
申请公布号	JPH03120747(U)	申请公布日期	1991.12.11
申请号	JP19900030322U	申请日期	1990.03.23
申请人		发明人
分类号	E04G17/14;E04G9/10;(IPC1-7):E04G17/14	主分类号	E04G17/14
代理机构		代理人
主权项
地址

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