JPS52104401A - Air reversing type boring system - Google Patents
Air reversing type boring systemInfo
- Publication number
- JPS52104401A JPS52104401A JP2200076A JP2200076A JPS52104401A JP S52104401 A JPS52104401 A JP S52104401A JP 2200076 A JP2200076 A JP 2200076A JP 2200076 A JP2200076 A JP 2200076A JP S52104401 A JPS52104401 A JP S52104401A
- Authority
- JP
- Japan
- Prior art keywords
- type boring
- boring system
- reversing type
- air reversing
- air
- 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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2200076A JPS52104401A (en) | 1976-03-01 | 1976-03-01 | Air reversing type boring system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2200076A JPS52104401A (en) | 1976-03-01 | 1976-03-01 | Air reversing type boring system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52104401A true JPS52104401A (en) | 1977-09-01 |
JPS5531873B2 JPS5531873B2 (en) | 1980-08-21 |
Family
ID=12070732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2200076A Granted JPS52104401A (en) | 1976-03-01 | 1976-03-01 | Air reversing type boring system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52104401A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56153089A (en) * | 1980-04-28 | 1981-11-26 | Takeshi Yamamoto | Labor-saving large calibre drilling |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61204422A (en) * | 1985-03-06 | 1986-09-10 | Murayama Doken:Kk | Trench excavating method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS48888U (en) * | 1971-05-26 | 1973-01-08 |
-
1976
- 1976-03-01 JP JP2200076A patent/JPS52104401A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS48888U (en) * | 1971-05-26 | 1973-01-08 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56153089A (en) * | 1980-04-28 | 1981-11-26 | Takeshi Yamamoto | Labor-saving large calibre drilling |
Also Published As
Publication number | Publication date |
---|---|
JPS5531873B2 (en) | 1980-08-21 |
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