JPS61111949U - - Google Patents
Info
- Publication number
- JPS61111949U JPS61111949U JP19530484U JP19530484U JPS61111949U JP S61111949 U JPS61111949 U JP S61111949U JP 19530484 U JP19530484 U JP 19530484U JP 19530484 U JP19530484 U JP 19530484U JP S61111949 U JPS61111949 U JP S61111949U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tap hole
- tip
- drill
- hole drilling
- 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
- 238000005553 drilling Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19530484U JPS6232986Y2 (https=) | 1984-12-25 | 1984-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19530484U JPS6232986Y2 (https=) | 1984-12-25 | 1984-12-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61111949U true JPS61111949U (https=) | 1986-07-15 |
| JPS6232986Y2 JPS6232986Y2 (https=) | 1987-08-24 |
Family
ID=30752819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19530484U Expired JPS6232986Y2 (https=) | 1984-12-25 | 1984-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6232986Y2 (https=) |
-
1984
- 1984-12-25 JP JP19530484U patent/JPS6232986Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6232986Y2 (https=) | 1987-08-24 |
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