JPH0147678B2 - - Google Patents

Info

Publication number
JPH0147678B2
JPH0147678B2 JP56205780A JP20578081A JPH0147678B2 JP H0147678 B2 JPH0147678 B2 JP H0147678B2 JP 56205780 A JP56205780 A JP 56205780A JP 20578081 A JP20578081 A JP 20578081A JP H0147678 B2 JPH0147678 B2 JP H0147678B2
Authority
JP
Japan
Prior art keywords
pipe
rubber
soil
protrusions
present
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
JP56205780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58106282A (ja
Inventor
Motokichi Sakata
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP56205780A priority Critical patent/JPS58106282A/ja
Publication of JPS58106282A publication Critical patent/JPS58106282A/ja
Publication of JPH0147678B2 publication Critical patent/JPH0147678B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Rigid Pipes And Flexible Pipes (AREA)
JP56205780A 1981-12-18 1981-12-18 多孔性パイプ Granted JPS58106282A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56205780A JPS58106282A (ja) 1981-12-18 1981-12-18 多孔性パイプ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56205780A JPS58106282A (ja) 1981-12-18 1981-12-18 多孔性パイプ

Publications (2)

Publication Number Publication Date
JPS58106282A JPS58106282A (ja) 1983-06-24
JPH0147678B2 true JPH0147678B2 (OSRAM) 1989-10-16

Family

ID=16512542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56205780A Granted JPS58106282A (ja) 1981-12-18 1981-12-18 多孔性パイプ

Country Status (1)

Country Link
JP (1) JPS58106282A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2515090Y2 (ja) * 1989-10-11 1996-10-23 日本化学株式会社 多孔性パイプ

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56141497A (en) * 1980-04-04 1981-11-05 Nishikawa Gomu Kogyo Kk Rubber made heat insulation pipe and its manufacture
JPS6057809A (ja) * 1983-09-09 1985-04-03 Tohoku Denki Koji Kk 光フアイバケ−ブル無張力延線工法

Also Published As

Publication number Publication date
JPS58106282A (ja) 1983-06-24

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