NL73200C - - Google Patents
Info
- Publication number
- NL73200C NL73200C NL73200DA NL73200C NL 73200 C NL73200 C NL 73200C NL 73200D A NL73200D A NL 73200DA NL 73200 C NL73200 C NL 73200C
- Authority
- NL
- Netherlands
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/0213—Assembling devices for pivoting caps upwardly
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)
Publications (1)
Publication Number | Publication Date |
---|---|
NL73200C true NL73200C (xx) |
Family
ID=1824096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL73200D NL73200C (xx) |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL73200C (xx) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2991104A (en) * | 1948-07-08 | 1961-07-04 | Eisenwerk Wanheim G M B H Fa | Connecting structure for beams of a roof support or the like |
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0
- NL NL73200D patent/NL73200C/xx active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2991104A (en) * | 1948-07-08 | 1961-07-04 | Eisenwerk Wanheim G M B H Fa | Connecting structure for beams of a roof support or the like |
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NL73200C (xx) |