JPS61116941U - - Google Patents
Info
- Publication number
- JPS61116941U JPS61116941U JP20080784U JP20080784U JPS61116941U JP S61116941 U JPS61116941 U JP S61116941U JP 20080784 U JP20080784 U JP 20080784U JP 20080784 U JP20080784 U JP 20080784U JP S61116941 U JPS61116941 U JP S61116941U
- Authority
- JP
- Japan
- Prior art keywords
- protrusion
- conical cylinder
- duct
- connection device
- screw
- 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
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Duct Arrangements (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20080784U JPS61116941U (ro) | 1984-12-28 | 1984-12-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20080784U JPS61116941U (ro) | 1984-12-28 | 1984-12-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61116941U true JPS61116941U (ro) | 1986-07-23 |
Family
ID=30761998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20080784U Pending JPS61116941U (ro) | 1984-12-28 | 1984-12-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61116941U (ro) |
-
1984
- 1984-12-28 JP JP20080784U patent/JPS61116941U/ja active Pending