CA989814A - Self-propelled drilling rigs for boring blastholes and small-diameter wells - Google Patents
Self-propelled drilling rigs for boring blastholes and small-diameter wellsInfo
- Publication number
- CA989814A CA989814A CA153,015A CA153015A CA989814A CA 989814 A CA989814 A CA 989814A CA 153015 A CA153015 A CA 153015A CA 989814 A CA989814 A CA 989814A
- Authority
- CA
- Canada
- Prior art keywords
- blastholes
- boring
- self
- small
- drilling rigs
- 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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA153,015A CA989814A (en) | 1972-10-02 | 1972-10-02 | Self-propelled drilling rigs for boring blastholes and small-diameter wells |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA153,015A CA989814A (en) | 1972-10-02 | 1972-10-02 | Self-propelled drilling rigs for boring blastholes and small-diameter wells |
Publications (1)
Publication Number | Publication Date |
---|---|
CA989814A true CA989814A (en) | 1976-05-25 |
Family
ID=4094583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA153,015A Expired CA989814A (en) | 1972-10-02 | 1972-10-02 | Self-propelled drilling rigs for boring blastholes and small-diameter wells |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA989814A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4367021A (en) * | 1978-11-03 | 1983-01-04 | Nordgren Bo G | Method and apparatus in tunneling |
US5113969A (en) * | 1991-05-10 | 1992-05-19 | Centre De Recherche Industrielle Du Quebec | Displaceable working platform with extensible boom |
-
1972
- 1972-10-02 CA CA153,015A patent/CA989814A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4367021A (en) * | 1978-11-03 | 1983-01-04 | Nordgren Bo G | Method and apparatus in tunneling |
US5113969A (en) * | 1991-05-10 | 1992-05-19 | Centre De Recherche Industrielle Du Quebec | Displaceable working platform with extensible boom |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |
Effective date: 19930525 |