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发明名称
JOINT STRUCTURE OF SPIRAL TUBE
摘要
申请公布号
JPH01210685(A)
申请公布日期
1989.08.24
申请号
JP19880037153
申请日期
1988.02.18
申请人
NAGAYOSHI SEIJI
发明人
NAGAYOSHI AKIO;NAGAYOSHI SEIJI
分类号
F16L33/00;F16L33/28
主分类号
F16L33/00
代理机构
代理人
主权项
地址
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