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发明名称
PRESSURE-RESISTANT SPIRAL PIPE FOR UNDERGROUND BURYING
摘要
申请公布号
JPS6199788(A)
申请公布日期
1986.05.17
申请号
JP19840221871
申请日期
1984.10.22
申请人
KANAO SHIRO
发明人
KANAO SHIRO
分类号
F16L11/11;F16L9/12;F16L9/16;F16L11/12
主分类号
F16L11/11
代理机构
代理人
主权项
地址
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