PL255801A1 - Mine ventilation pipe - Google Patents
Mine ventilation pipeInfo
- Publication number
- PL255801A1 PL255801A1 PL25580185A PL25580185A PL255801A1 PL 255801 A1 PL255801 A1 PL 255801A1 PL 25580185 A PL25580185 A PL 25580185A PL 25580185 A PL25580185 A PL 25580185A PL 255801 A1 PL255801 A1 PL 255801A1
- Authority
- PL
- Poland
- Prior art keywords
- ventilation pipe
- mine ventilation
- mine
- pipe
- ventilation
- Prior art date
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL25580185A PL147627B1 (en) | 1985-10-15 | 1985-10-15 | Mine ventilation pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL25580185A PL147627B1 (en) | 1985-10-15 | 1985-10-15 | Mine ventilation pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
PL255801A1 true PL255801A1 (en) | 1987-05-04 |
PL147627B1 PL147627B1 (en) | 1989-07-31 |
Family
ID=20028648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL25580185A PL147627B1 (en) | 1985-10-15 | 1985-10-15 | Mine ventilation pipe |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL147627B1 (en) |
-
1985
- 1985-10-15 PL PL25580185A patent/PL147627B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
PL147627B1 (en) | 1989-07-31 |
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