JPH025489U - - Google Patents

Info

Publication number
JPH025489U
JPH025489U JP8203588U JP8203588U JPH025489U JP H025489 U JPH025489 U JP H025489U JP 8203588 U JP8203588 U JP 8203588U JP 8203588 U JP8203588 U JP 8203588U JP H025489 U JPH025489 U JP H025489U
Authority
JP
Japan
Prior art keywords
metal tube
tube members
insulating
annular groove
interposed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8203588U
Other languages
English (en)
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP8203588U priority Critical patent/JPH025489U/ja
Publication of JPH025489U publication Critical patent/JPH025489U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP8203588U 1988-06-20 1988-06-20 Pending JPH025489U (US20030204162A1-20031030-M00001.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8203588U JPH025489U (US20030204162A1-20031030-M00001.png) 1988-06-20 1988-06-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8203588U JPH025489U (US20030204162A1-20031030-M00001.png) 1988-06-20 1988-06-20

Publications (1)

Publication Number Publication Date
JPH025489U true JPH025489U (US20030204162A1-20031030-M00001.png) 1990-01-16

Family

ID=31306803

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8203588U Pending JPH025489U (US20030204162A1-20031030-M00001.png) 1988-06-20 1988-06-20

Country Status (1)

Country Link
JP (1) JPH025489U (US20030204162A1-20031030-M00001.png)

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