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

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
NL83499C true NL83499C (is)

Family

ID=3878822

Family Applications (1)

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

Country Status (6)

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

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 (2)

* 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
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
GB718457A (en) 1954-11-17
BE502749A (is)
LU31403A1 (is)
DE1022538B (de) 1958-01-16
FR1054501A (fr) 1954-02-11

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