JPH0441692Y2 - - Google Patents
Info
- Publication number
- JPH0441692Y2 JPH0441692Y2 JP2070287U JP2070287U JPH0441692Y2 JP H0441692 Y2 JPH0441692 Y2 JP H0441692Y2 JP 2070287 U JP2070287 U JP 2070287U JP 2070287 U JP2070287 U JP 2070287U JP H0441692 Y2 JPH0441692 Y2 JP H0441692Y2
- Authority
- JP
- Japan
- Prior art keywords
- trough
- hole
- drilling
- receiver
- auxiliary tool
- 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
- 238000005553 drilling Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000011210 fiber-reinforced concrete Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2070287U JPH0441692Y2 (enrdf_load_stackoverflow) | 1987-02-17 | 1987-02-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2070287U JPH0441692Y2 (enrdf_load_stackoverflow) | 1987-02-17 | 1987-02-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63131514U JPS63131514U (enrdf_load_stackoverflow) | 1988-08-29 |
JPH0441692Y2 true JPH0441692Y2 (enrdf_load_stackoverflow) | 1992-09-30 |
Family
ID=30816458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2070287U Expired JPH0441692Y2 (enrdf_load_stackoverflow) | 1987-02-17 | 1987-02-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0441692Y2 (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3957119B2 (ja) * | 1999-06-18 | 2007-08-15 | 株式会社協和エクシオ | 配線管路分岐用孔明け工法 |
-
1987
- 1987-02-17 JP JP2070287U patent/JPH0441692Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS63131514U (enrdf_load_stackoverflow) | 1988-08-29 |