JPS63115683U - - Google Patents

Info

Publication number
JPS63115683U
JPS63115683U JP708587U JP708587U JPS63115683U JP S63115683 U JPS63115683 U JP S63115683U JP 708587 U JP708587 U JP 708587U JP 708587 U JP708587 U JP 708587U JP S63115683 U JPS63115683 U JP S63115683U
Authority
JP
Japan
Prior art keywords
reinforcing rib
flanges
synthetic resin
vertical walls
extending
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
JP708587U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0448397Y2 (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 JP1987007085U priority Critical patent/JPH0448397Y2/ja
Publication of JPS63115683U publication Critical patent/JPS63115683U/ja
Application granted granted Critical
Publication of JPH0448397Y2 publication Critical patent/JPH0448397Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Rigid Pipes And Flexible Pipes (AREA)
JP1987007085U 1987-01-21 1987-01-21 Expired JPH0448397Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987007085U JPH0448397Y2 (enrdf_load_stackoverflow) 1987-01-21 1987-01-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987007085U JPH0448397Y2 (enrdf_load_stackoverflow) 1987-01-21 1987-01-21

Publications (2)

Publication Number Publication Date
JPS63115683U true JPS63115683U (enrdf_load_stackoverflow) 1988-07-26
JPH0448397Y2 JPH0448397Y2 (enrdf_load_stackoverflow) 1992-11-13

Family

ID=30790211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987007085U Expired JPH0448397Y2 (enrdf_load_stackoverflow) 1987-01-21 1987-01-21

Country Status (1)

Country Link
JP (1) JPH0448397Y2 (enrdf_load_stackoverflow)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110426A (en) * 1980-12-29 1982-07-09 Toyo Chem Co Ltd Method and apparatus for preparing corrugated pipe
JPS61141889U (enrdf_load_stackoverflow) * 1985-02-25 1986-09-02

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110426A (en) * 1980-12-29 1982-07-09 Toyo Chem Co Ltd Method and apparatus for preparing corrugated pipe
JPS61141889U (enrdf_load_stackoverflow) * 1985-02-25 1986-09-02

Also Published As

Publication number Publication date
JPH0448397Y2 (enrdf_load_stackoverflow) 1992-11-13

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