NL173308B - Verlichtingsarmatuur. - Google Patents

Verlichtingsarmatuur.

Info

Publication number
NL173308B
NL173308B NLAANVRAGE7014822,A NL173308DA NL173308B NL 173308 B NL173308 B NL 173308B NL 173308D A NL173308D A NL 173308DA NL 173308 B NL173308 B NL 173308B
Authority
NL
Netherlands
Prior art keywords
lighting luminaires
luminaires
lighting
Prior art date
Application number
NLAANVRAGE7014822,A
Other languages
English (en)
Original Assignee
Ceag Licht & Strom
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 NL173308B publication Critical patent/NL173308B/nl

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)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
NLAANVRAGE7014822,A 1951-12-28 Verlichtingsarmatuur. NL173308B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE508081T 1951-12-28

Publications (1)

Publication Number Publication Date
NL173308B true NL173308B (nl)

Family

ID=3878815

Family Applications (2)

Application Number Title Priority Date Filing Date
NLAANVRAGE7014822,A NL173308B (nl) 1951-12-28 Verlichtingsarmatuur.
NL173308A NL89415C (nl) 1951-12-28 1952-10-22

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL173308A NL89415C (nl) 1951-12-28 1952-10-22

Country Status (5)

Country Link
BE (1) BE508081A (nl)
DE (1) DE1025366B (nl)
FR (1) FR1074602A (nl)
GB (1) GB718352A (nl)
NL (2) NL89415C (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1196613B (de) * 1962-07-31 1965-07-15 Aloys Vanwersch Kappenverbindung fuer den Strebausbau in Untertagebetrieben
DE2849890C2 (de) * 1978-11-17 1990-04-19 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Kappenverbindung, insbesondere für Vorpfändkappen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE503626A (nl) *
DE804317C (de) * 1949-03-22 1951-04-19 Otto Leppak Verfahren zur Schaffung einer stempelfreien Abbaufront beim eisernen Strebausbau

Also Published As

Publication number Publication date
FR1074602A (fr) 1954-10-07
DE1025366B (de) 1958-03-06
NL89415C (nl) 1958-06-16
BE508081A (nl) 1952-01-15
GB718352A (en) 1954-11-10

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