PL271559A1 - Man-lock - Google Patents
Man-lockInfo
- Publication number
- PL271559A1 PL271559A1 PL27155988A PL27155988A PL271559A1 PL 271559 A1 PL271559 A1 PL 271559A1 PL 27155988 A PL27155988 A PL 27155988A PL 27155988 A PL27155988 A PL 27155988A PL 271559 A1 PL271559 A1 PL 271559A1
- Authority
- PL
- Poland
- Prior art keywords
- man
- lock
- Prior art date
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL27155988A PL158004B1 (en) | 1988-03-30 | 1988-03-30 | Ventilation sluice for persons |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL27155988A PL158004B1 (en) | 1988-03-30 | 1988-03-30 | Ventilation sluice for persons |
Publications (2)
Publication Number | Publication Date |
---|---|
PL271559A1 true PL271559A1 (en) | 1989-10-02 |
PL158004B1 PL158004B1 (en) | 1992-07-31 |
Family
ID=20041373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL27155988A PL158004B1 (en) | 1988-03-30 | 1988-03-30 | Ventilation sluice for persons |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL158004B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103362529B (en) * | 2012-03-26 | 2016-01-06 | 枣庄福德通用机械有限公司 | Coal mine ventilation door automatic integral interlocking device |
-
1988
- 1988-03-30 PL PL27155988A patent/PL158004B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
PL158004B1 (en) | 1992-07-31 |
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