JPS5786685A - Low penetrational hollow ball and charging pipe for temporary reducing volume - Google Patents

Low penetrational hollow ball and charging pipe for temporary reducing volume

Info

Publication number
JPS5786685A
JPS5786685A JP15132381A JP15132381A JPS5786685A JP S5786685 A JPS5786685 A JP S5786685A JP 15132381 A JP15132381 A JP 15132381A JP 15132381 A JP15132381 A JP 15132381A JP S5786685 A JPS5786685 A JP S5786685A
Authority
JP
Japan
Prior art keywords
penetrational
low
hollow ball
charging pipe
reducing volume
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.)
Granted
Application number
JP15132381A
Other languages
Japanese (ja)
Other versions
JPH0246827B2 (en
Inventor
Randooru Betsuku Uooren
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of JPS5786685A publication Critical patent/JPS5786685A/en
Publication of JPH0246827B2 publication Critical patent/JPH0246827B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)
JP15132381A 1980-09-25 1981-09-24 Low penetrational hollow ball and charging pipe for temporary reducing volume Granted JPS5786685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19071880A 1980-09-25 1980-09-25

Publications (2)

Publication Number Publication Date
JPS5786685A true JPS5786685A (en) 1982-05-29
JPH0246827B2 JPH0246827B2 (en) 1990-10-17

Family

ID=22702475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15132381A Granted JPS5786685A (en) 1980-09-25 1981-09-24 Low penetrational hollow ball and charging pipe for temporary reducing volume

Country Status (3)

Country Link
JP (1) JPS5786685A (en)
AU (1) AU546531B2 (en)
CA (1) CA1158572A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5336804U (en) * 1976-09-06 1978-03-31
US4111713A (en) * 1975-01-29 1978-09-05 Minnesota Mining And Manufacturing Company Hollow spheres

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111713A (en) * 1975-01-29 1978-09-05 Minnesota Mining And Manufacturing Company Hollow spheres
JPS5336804U (en) * 1976-09-06 1978-03-31

Also Published As

Publication number Publication date
CA1158572A (en) 1983-12-13
AU7564781A (en) 1982-04-01
AU546531B2 (en) 1985-09-05
JPH0246827B2 (en) 1990-10-17

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