LU32099A1 - - Google Patents
Info
- Publication number
- LU32099A1 LU32099A1 LU32099DA LU32099A1 LU 32099 A1 LU32099 A1 LU 32099A1 LU 32099D A LU32099D A LU 32099DA LU 32099 A1 LU32099 A1 LU 32099A1
- Authority
- LU
- Luxembourg
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE726000X | 1952-05-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
LU32099A1 true LU32099A1 (US08063081-20111122-C00044.png) |
Family
ID=3879009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
LU32099D LU32099A1 (US08063081-20111122-C00044.png) | 1952-05-31 |
Country Status (5)
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE499766A (US08063081-20111122-C00044.png) * | 1948-07-08 | |||
DE199149C (US08063081-20111122-C00044.png) * | 1954-01-29 | |||
US3043108A (en) * | 1958-07-16 | 1962-07-10 | Vanwersch Aloys | Mine roof bar arrangement |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR993340A (fr) * | 1951-04-23 | 1951-11-12 | Bochumer Eisen Heintzmann | Dispositif de soutènement pour exploitations minières par taille |
NL86396C (US08063081-20111122-C00044.png) * | 1950-03-04 | |||
AT174363B (de) * | 1951-04-23 | 1953-03-25 | Bochumer Eisen Heintzmann | Kappenverbindung beim Strebausbau in Stahl |
-
0
- LU LU32099D patent/LU32099A1/xx unknown
- BE BE511825D patent/BE511825A/xx unknown
-
1953
- 1953-04-04 FR FR1074334D patent/FR1074334A/fr not_active Expired
- 1953-04-16 GB GB10422/53A patent/GB726000A/en not_active Expired
- 1953-05-29 DE DEU2211A patent/DE1018824B/de active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1018824B (de) | 1957-11-07 |
GB726000A (en) | 1955-03-16 |
BE511825A (US08063081-20111122-C00044.png) | |
FR1074334A (fr) | 1954-10-05 |