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经营范围
发明名称
WATER SEAL RING FOR PIPE JOINT
摘要
申请公布号
JPS54139115(A)
申请公布日期
1979.10.29
申请号
JP19780047426
申请日期
1978.04.20
申请人
NIPPON HIYUUMU KAN KK
发明人
IIDA HIDEO
分类号
F16L21/02;F16L17/02
主分类号
F16L21/02
代理机构
代理人
主权项
地址
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