JPS621597Y2 - - Google Patents

Info

Publication number
JPS621597Y2
JPS621597Y2 JP2930681U JP2930681U JPS621597Y2 JP S621597 Y2 JPS621597 Y2 JP S621597Y2 JP 2930681 U JP2930681 U JP 2930681U JP 2930681 U JP2930681 U JP 2930681U JP S621597 Y2 JPS621597 Y2 JP S621597Y2
Authority
JP
Japan
Prior art keywords
tube
inner tube
leak detection
double
diameter
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.)
Expired
Application number
JP2930681U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57145180U (enrdf_load_stackoverflow
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 JP2930681U priority Critical patent/JPS621597Y2/ja
Publication of JPS57145180U publication Critical patent/JPS57145180U/ja
Application granted granted Critical
Publication of JPS621597Y2 publication Critical patent/JPS621597Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Examining Or Testing Airtightness (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
JP2930681U 1981-03-03 1981-03-03 Expired JPS621597Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2930681U JPS621597Y2 (enrdf_load_stackoverflow) 1981-03-03 1981-03-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2930681U JPS621597Y2 (enrdf_load_stackoverflow) 1981-03-03 1981-03-03

Publications (2)

Publication Number Publication Date
JPS57145180U JPS57145180U (enrdf_load_stackoverflow) 1982-09-11
JPS621597Y2 true JPS621597Y2 (enrdf_load_stackoverflow) 1987-01-14

Family

ID=29826900

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2930681U Expired JPS621597Y2 (enrdf_load_stackoverflow) 1981-03-03 1981-03-03

Country Status (1)

Country Link
JP (1) JPS621597Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS57145180U (enrdf_load_stackoverflow) 1982-09-11

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