JPH0230768Y2 - - Google Patents

Info

Publication number
JPH0230768Y2
JPH0230768Y2 JP13771881U JP13771881U JPH0230768Y2 JP H0230768 Y2 JPH0230768 Y2 JP H0230768Y2 JP 13771881 U JP13771881 U JP 13771881U JP 13771881 U JP13771881 U JP 13771881U JP H0230768 Y2 JPH0230768 Y2 JP H0230768Y2
Authority
JP
Japan
Prior art keywords
pipe
mandrill
traveling machine
insulating piece
pipeline
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
JP13771881U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5842735U (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 JP13771881U priority Critical patent/JPS5842735U/ja
Publication of JPS5842735U publication Critical patent/JPS5842735U/ja
Application granted granted Critical
Publication of JPH0230768Y2 publication Critical patent/JPH0230768Y2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Examining Or Testing Airtightness (AREA)
JP13771881U 1981-09-18 1981-09-18 管路走行機の警報器付マンドリル Granted JPS5842735U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13771881U JPS5842735U (ja) 1981-09-18 1981-09-18 管路走行機の警報器付マンドリル

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13771881U JPS5842735U (ja) 1981-09-18 1981-09-18 管路走行機の警報器付マンドリル

Publications (2)

Publication Number Publication Date
JPS5842735U JPS5842735U (ja) 1983-03-22
JPH0230768Y2 true JPH0230768Y2 (en]) 1990-08-20

Family

ID=29930974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13771881U Granted JPS5842735U (ja) 1981-09-18 1981-09-18 管路走行機の警報器付マンドリル

Country Status (1)

Country Link
JP (1) JPS5842735U (en])

Also Published As

Publication number Publication date
JPS5842735U (ja) 1983-03-22

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