NL83499C - - Google Patents

Info

Publication number
NL83499C
NL83499C NL83499DA NL83499C NL 83499 C NL83499 C NL 83499C NL 83499D A NL83499D A NL 83499DA NL 83499 C NL83499 C NL 83499C
Authority
NL
Netherlands
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL83499C publication Critical patent/NL83499C/xx

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)
  • Clamps And Clips (AREA)
  • Emergency Lowering Means (AREA)
  • Component Parts Of Construction Machinery (AREA)
NL83499D 1951-04-23 NL83499C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE718457X 1951-04-23

Publications (1)

Publication Number Publication Date
NL83499C true NL83499C (enrdf_load_html_response)

Family

ID=3878822

Family Applications (1)

Application Number Title Priority Date Filing Date
NL83499D NL83499C (enrdf_load_html_response) 1951-04-23

Country Status (6)

Country Link
BE (1) BE502749A (enrdf_load_html_response)
DE (1) DE1022538B (enrdf_load_html_response)
FR (1) FR1054501A (enrdf_load_html_response)
GB (1) GB718457A (enrdf_load_html_response)
LU (1) LU31403A1 (enrdf_load_html_response)
NL (1) NL83499C (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4881776A (en) * 1988-11-22 1989-11-21 Casual Living International Inc. Chairs with foldable backs

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991097A (en) * 1948-07-08 1961-07-04 Vanwersch Aloys Connecting structure for beams of a roof support or the like
DE1197417B (de) 1964-02-26 1965-07-29 Aloys Vanwersch Kappenverbindung fuer den Grubenausbau in Untertagebetrieben
US4653951A (en) * 1985-08-12 1987-03-31 General Dynamics Corp./Convair Division Zero free-play joint for deployable space structures

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE804317C (de) * 1949-03-22 1951-04-19 Otto Leppak Verfahren zur Schaffung einer stempelfreien Abbaufront beim eisernen Strebausbau

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4881776A (en) * 1988-11-22 1989-11-21 Casual Living International Inc. Chairs with foldable backs

Also Published As

Publication number Publication date
BE502749A (enrdf_load_html_response)
DE1022538B (de) 1958-01-16
FR1054501A (fr) 1954-02-11
GB718457A (en) 1954-11-17
LU31403A1 (enrdf_load_html_response)

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