JPS63115685U - - Google Patents
Info
- Publication number
- JPS63115685U JPS63115685U JP708787U JP708787U JPS63115685U JP S63115685 U JPS63115685 U JP S63115685U JP 708787 U JP708787 U JP 708787U JP 708787 U JP708787 U JP 708787U JP S63115685 U JPS63115685 U JP S63115685U
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing rib
- synthetic resin
- resin pipe
- upper wall
- corner
- 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.)
- Pending
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims 2
- 239000000057 synthetic resin Substances 0.000 claims 2
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP708787U JPS63115685U (cs) | 1987-01-21 | 1987-01-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP708787U JPS63115685U (cs) | 1987-01-21 | 1987-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63115685U true JPS63115685U (cs) | 1988-07-26 |
Family
ID=30790215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP708787U Pending JPS63115685U (cs) | 1987-01-21 | 1987-01-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63115685U (cs) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5326869A (en) * | 1976-08-24 | 1978-03-13 | Hegler Wilhelm | Double walled plastic pipes and their manufacturing process |
| JPS5844583B2 (ja) * | 1979-04-09 | 1983-10-04 | ユニオン、カ−バイド、コ−ポレ−シヨン | シ−ト材の折畳み方法および折畳み装置 |
-
1987
- 1987-01-21 JP JP708787U patent/JPS63115685U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5326869A (en) * | 1976-08-24 | 1978-03-13 | Hegler Wilhelm | Double walled plastic pipes and their manufacturing process |
| JPS5844583B2 (ja) * | 1979-04-09 | 1983-10-04 | ユニオン、カ−バイド、コ−ポレ−シヨン | シ−ト材の折畳み方法および折畳み装置 |