JPH01102278U - - Google Patents
Info
- Publication number
- JPH01102278U JPH01102278U JP19883487U JP19883487U JPH01102278U JP H01102278 U JPH01102278 U JP H01102278U JP 19883487 U JP19883487 U JP 19883487U JP 19883487 U JP19883487 U JP 19883487U JP H01102278 U JPH01102278 U JP H01102278U
- Authority
- JP
- Japan
- Prior art keywords
- main
- groove
- sub
- communicates
- main groove
- 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
Landscapes
- Sewage (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19883487U JPH01102278U (ar) | 1987-12-28 | 1987-12-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19883487U JPH01102278U (ar) | 1987-12-28 | 1987-12-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01102278U true JPH01102278U (ar) | 1989-07-10 |
Family
ID=31489319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19883487U Pending JPH01102278U (ar) | 1987-12-28 | 1987-12-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01102278U (ar) |
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1987
- 1987-12-28 JP JP19883487U patent/JPH01102278U/ja active Pending