发明授权
US1853882A Differential method of indicating trouble on an oil filled cable 失效
充油电缆指示故障的差分方法

  • 专利标题: Differential method of indicating trouble on an oil filled cable
  • 专利标题(中): 充油电缆指示故障的差分方法
  • 申请号: US24502528
    申请日: 1928-01-06
  • 公开(公告)号: US1853882A
    公开(公告)日: 1932-04-12
  • 发明人: ROPER DENNEY W
  • 申请人: ROPER DENNEY W
  • 专利权人: Denney W Roper
  • 当前专利权人: Denney W Roper
  • 优先权: DEF0045230 1930-04-12; DEF0096430 1930-08-15; US24502528 1928-01-06; US50351930 1930-12-19
  • 主分类号: G01M3/18
  • IPC分类号: G01M3/18 G01M3/28
Differential method of indicating trouble on an oil filled cable
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