JPS51144055A - Manhole covering made of iron - Google Patents
Manhole covering made of ironInfo
- Publication number
- JPS51144055A JPS51144055A JP50068010A JP6801075A JPS51144055A JP S51144055 A JPS51144055 A JP S51144055A JP 50068010 A JP50068010 A JP 50068010A JP 6801075 A JP6801075 A JP 6801075A JP S51144055 A JPS51144055 A JP S51144055A
- Authority
- JP
- Japan
- Prior art keywords
- iron
- covering made
- manhole covering
- manhole
- strength against
- 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.)
- Granted
Links
Abstract
PURPOSE: To provide a manhole covering made of iron having strength against load.
COPYRIGHT: (C)1976,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50068010A JPS51144055A (en) | 1975-06-05 | 1975-06-05 | Manhole covering made of iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50068010A JPS51144055A (en) | 1975-06-05 | 1975-06-05 | Manhole covering made of iron |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS51144055A true JPS51144055A (en) | 1976-12-10 |
JPS545623B2 JPS545623B2 (en) | 1979-03-19 |
Family
ID=13361441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50068010A Granted JPS51144055A (en) | 1975-06-05 | 1975-06-05 | Manhole covering made of iron |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS51144055A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53146260U (en) * | 1977-04-25 | 1978-11-17 | ||
JPS6053863U (en) * | 1983-09-21 | 1985-04-16 | 不二グレ−ト工業株式会社 | Lid of fire hydrant case |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63200515U (en) * | 1987-06-16 | 1988-12-23 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB932719A (en) * | 1960-06-20 | 1963-07-31 | William Whitworth Taylor | Improvements in manhole structures |
JPS545623A (en) * | 1977-06-15 | 1979-01-17 | Matsushita Electric Ind Co Ltd | Code reading device |
-
1975
- 1975-06-05 JP JP50068010A patent/JPS51144055A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB932719A (en) * | 1960-06-20 | 1963-07-31 | William Whitworth Taylor | Improvements in manhole structures |
JPS545623A (en) * | 1977-06-15 | 1979-01-17 | Matsushita Electric Ind Co Ltd | Code reading device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53146260U (en) * | 1977-04-25 | 1978-11-17 | ||
JPS6053863U (en) * | 1983-09-21 | 1985-04-16 | 不二グレ−ト工業株式会社 | Lid of fire hydrant case |
JPH0320376Y2 (en) * | 1983-09-21 | 1991-05-01 |
Also Published As
Publication number | Publication date |
---|---|
JPS545623B2 (en) | 1979-03-19 |
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