JPS53132403A - Bit for expanding hole - Google Patents
Bit for expanding holeInfo
- Publication number
- JPS53132403A JPS53132403A JP4812277A JP4812277A JPS53132403A JP S53132403 A JPS53132403 A JP S53132403A JP 4812277 A JP4812277 A JP 4812277A JP 4812277 A JP4812277 A JP 4812277A JP S53132403 A JPS53132403 A JP S53132403A
- Authority
- JP
- Japan
- Prior art keywords
- bit
- expanding hole
- expanding
- 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.)
- Pending
Links
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4812277A JPS53132403A (en) | 1977-04-25 | 1977-04-25 | Bit for expanding hole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4812277A JPS53132403A (en) | 1977-04-25 | 1977-04-25 | Bit for expanding hole |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS53132403A true JPS53132403A (en) | 1978-11-18 |
Family
ID=12794513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4812277A Pending JPS53132403A (en) | 1977-04-25 | 1977-04-25 | Bit for expanding hole |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53132403A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009180030A (en) * | 2008-01-31 | 2009-08-13 | Giken Seisakusho Co Ltd | Excavation tool |
-
1977
- 1977-04-25 JP JP4812277A patent/JPS53132403A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009180030A (en) * | 2008-01-31 | 2009-08-13 | Giken Seisakusho Co Ltd | Excavation tool |
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