JPH0450551Y2 - - Google Patents
Info
- Publication number
- JPH0450551Y2 JPH0450551Y2 JP11839987U JP11839987U JPH0450551Y2 JP H0450551 Y2 JPH0450551 Y2 JP H0450551Y2 JP 11839987 U JP11839987 U JP 11839987U JP 11839987 U JP11839987 U JP 11839987U JP H0450551 Y2 JPH0450551 Y2 JP H0450551Y2
- Authority
- JP
- Japan
- Prior art keywords
- marker
- rod
- shaped body
- shaped
- hole
- 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
- 239000003550 marker Substances 0.000 claims description 43
- 238000009434 installation Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Geophysics And Detection Of Objects (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11839987U JPH0450551Y2 (enrdf_load_stackoverflow) | 1987-07-31 | 1987-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11839987U JPH0450551Y2 (enrdf_load_stackoverflow) | 1987-07-31 | 1987-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6423685U JPS6423685U (enrdf_load_stackoverflow) | 1989-02-08 |
| JPH0450551Y2 true JPH0450551Y2 (enrdf_load_stackoverflow) | 1992-11-27 |
Family
ID=31362725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11839987U Expired JPH0450551Y2 (enrdf_load_stackoverflow) | 1987-07-31 | 1987-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0450551Y2 (enrdf_load_stackoverflow) |
-
1987
- 1987-07-31 JP JP11839987U patent/JPH0450551Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6423685U (enrdf_load_stackoverflow) | 1989-02-08 |
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