JPS5228500B2 - - Google Patents
Info
- Publication number
- JPS5228500B2 JPS5228500B2 JP1879674A JP1879674A JPS5228500B2 JP S5228500 B2 JPS5228500 B2 JP S5228500B2 JP 1879674 A JP1879674 A JP 1879674A JP 1879674 A JP1879674 A JP 1879674A JP S5228500 B2 JPS5228500 B2 JP S5228500B2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Landscapes
- Ventilation (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1879674A JPS5228500B2 (https=) | 1974-02-15 | 1974-02-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1879674A JPS5228500B2 (https=) | 1974-02-15 | 1974-02-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50113039A JPS50113039A (https=) | 1975-09-04 |
| JPS5228500B2 true JPS5228500B2 (https=) | 1977-07-27 |
Family
ID=11981544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1879674A Expired JPS5228500B2 (https=) | 1974-02-15 | 1974-02-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5228500B2 (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5462796U (https=) * | 1977-10-12 | 1979-05-02 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5359251A (en) * | 1976-11-10 | 1978-05-27 | Toshiba Corp | Method of controlling ventilation in tunnel |
-
1974
- 1974-02-15 JP JP1879674A patent/JPS5228500B2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5462796U (https=) * | 1977-10-12 | 1979-05-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS50113039A (https=) | 1975-09-04 |