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发明名称
ACOUSTIC PIPE LENGTH MEASURING APPARATUS
摘要
申请公布号
CA2063918(A1)
申请公布日期
1992.09.28
申请号
CA19922063918
申请日期
1992.03.25
申请人
TOKYO GAS CO., LTD.
发明人
NAKAMURA, HIROSHI;ITOH, TAKANORI;NATORI, MASAKI
分类号
G01B17/00;(IPC1-7):G01B17/00
主分类号
G01B17/00
代理机构
代理人
主权项
地址
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