FI30716A - Jääpora - Google Patents
JääporaInfo
- Publication number
- FI30716A FI30716A FI30716DA FI30716A FI 30716 A FI30716 A FI 30716A FI 30716D A FI30716D A FI 30716DA FI 30716 A FI30716 A FI 30716A
- Authority
- FI
- Finland
- Prior art keywords
- ice drill
- drill
- ice
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI30716T | 1956-05-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
FI30716A true FI30716A (fi) | 1959-11-10 |
Family
ID=36894932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI30716D FI30716A (fi) | 1956-05-09 | 1956-05-09 | Jääpora |
Country Status (1)
Country | Link |
---|---|
FI (1) | FI30716A (fi) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5042600A (en) * | 1990-03-23 | 1991-08-27 | Conoco Inc. | Drill pipe with helical ridge for drilling highly angulated wells |
-
1956
- 1956-05-09 FI FI30716D patent/FI30716A/fi unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5042600A (en) * | 1990-03-23 | 1991-08-27 | Conoco Inc. | Drill pipe with helical ridge for drilling highly angulated wells |
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