JPH0273464U - - Google Patents
Info
- Publication number
- JPH0273464U JPH0273464U JP15344888U JP15344888U JPH0273464U JP H0273464 U JPH0273464 U JP H0273464U JP 15344888 U JP15344888 U JP 15344888U JP 15344888 U JP15344888 U JP 15344888U JP H0273464 U JPH0273464 U JP H0273464U
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- frame material
- safety net
- net
- ventilation pipe
- 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 claims description 3
- 238000009434 installation Methods 0.000 description 1
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15344888U JPH0273464U (el) | 1988-11-28 | 1988-11-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15344888U JPH0273464U (el) | 1988-11-28 | 1988-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0273464U true JPH0273464U (el) | 1990-06-05 |
Family
ID=31429296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15344888U Pending JPH0273464U (el) | 1988-11-28 | 1988-11-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0273464U (el) |
-
1988
- 1988-11-28 JP JP15344888U patent/JPH0273464U/ja active Pending