JPS644922Y2 - - Google Patents
Info
- Publication number
- JPS644922Y2 JPS644922Y2 JP1979157285U JP15728579U JPS644922Y2 JP S644922 Y2 JPS644922 Y2 JP S644922Y2 JP 1979157285 U JP1979157285 U JP 1979157285U JP 15728579 U JP15728579 U JP 15728579U JP S644922 Y2 JPS644922 Y2 JP S644922Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- trench
- backfilling
- attached
- digging
- 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
- 239000002689 soil Substances 0.000 claims description 18
- 238000009412 basement excavation Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 16
- 210000000078 claw Anatomy 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Soil Working Implements (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979157285U JPS644922Y2 (US08124317-20120228-C00018.png) | 1979-11-10 | 1979-11-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979157285U JPS644922Y2 (US08124317-20120228-C00018.png) | 1979-11-10 | 1979-11-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5673770U JPS5673770U (US08124317-20120228-C00018.png) | 1981-06-17 |
| JPS644922Y2 true JPS644922Y2 (US08124317-20120228-C00018.png) | 1989-02-08 |
Family
ID=29668598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979157285U Expired JPS644922Y2 (US08124317-20120228-C00018.png) | 1979-11-10 | 1979-11-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS644922Y2 (US08124317-20120228-C00018.png) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4949041A (US08124317-20120228-C00018.png) * | 1972-09-19 | 1974-05-13 | ||
| JPS5122484U (US08124317-20120228-C00018.png) * | 1974-08-09 | 1976-02-19 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS552121Y2 (US08124317-20120228-C00018.png) * | 1973-04-27 | 1980-01-21 |
-
1979
- 1979-11-10 JP JP1979157285U patent/JPS644922Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4949041A (US08124317-20120228-C00018.png) * | 1972-09-19 | 1974-05-13 | ||
| JPS5122484U (US08124317-20120228-C00018.png) * | 1974-08-09 | 1976-02-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5673770U (US08124317-20120228-C00018.png) | 1981-06-17 |
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