JPS6246431B2 - - Google Patents
Info
- Publication number
- JPS6246431B2 JPS6246431B2 JP56020107A JP2010781A JPS6246431B2 JP S6246431 B2 JPS6246431 B2 JP S6246431B2 JP 56020107 A JP56020107 A JP 56020107A JP 2010781 A JP2010781 A JP 2010781A JP S6246431 B2 JPS6246431 B2 JP S6246431B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- manhole
- tank
- lid
- cover
- 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.)
- Expired
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56020107A JPS57142889A (en) | 1981-02-16 | 1981-02-16 | Method of opening manhole for tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56020107A JPS57142889A (en) | 1981-02-16 | 1981-02-16 | Method of opening manhole for tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57142889A JPS57142889A (en) | 1982-09-03 |
| JPS6246431B2 true JPS6246431B2 (en, 2012) | 1987-10-02 |
Family
ID=12017886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56020107A Granted JPS57142889A (en) | 1981-02-16 | 1981-02-16 | Method of opening manhole for tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57142889A (en, 2012) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6333294A (ja) * | 1986-07-22 | 1988-02-12 | 株式会社 富永製作所 | 危険物貯蔵用地下タンクのマンホ−ル加工方法 |
| JP2003095382A (ja) * | 2001-09-25 | 2003-04-03 | Ishikawajima Harima Heavy Ind Co Ltd | タンクのマンホール構造 |
| US9222622B2 (en) * | 2007-11-26 | 2015-12-29 | Air Products And Chemicals, Inc. | Vessels with personnel access provisions |
-
1981
- 1981-02-16 JP JP56020107A patent/JPS57142889A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57142889A (en) | 1982-09-03 |
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