Expansible plug for pipes
作者： Oakley W Hosking
DOI:
关键词: Petroleum engineering 、 Spark plug 、 Geology
摘要:
lens.org 参考文章(5)
Elizabeth A Goodman, Goodman Mary, Inflatable conduit stopper ,(1930)
Gorzkowski Andrew, Expansible plug for sealing bores ,(1946)
Svirsky Bennett, Expansible plugs for conduits ,(1941)
Firth William, Improvements in Plugs or Stoppers for Drains and the like. ,(1896)
Clarence M Kemp, Charles E Kemp, Pipe-testing plug. ,(1911)