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经营范围
发明名称
METHOD OF CHECKING DEFECT OF METAL PIPE
摘要
申请公布号
JPH01206246(A)
申请公布日期
1989.08.18
申请号
JP19880031445
申请日期
1988.02.12
申请人
OSAKA GAS CO LTD;TOKYO GAS CO LTD;TOHO GAS CO LTD
发明人
KIKUTA TAKASHI;YAMAGISHI TAKAO;HOSOHARA YASUHARU;YASUI KAICHI
分类号
G01N22/00;G01N22/02;G01N27/82
主分类号
G01N22/00
代理机构
代理人
主权项
地址
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