FR2101930A5 - - Google Patents

Info

Publication number
FR2101930A5
FR2101930A5 FR7127521A FR7127521A FR2101930A5 FR 2101930 A5 FR2101930 A5 FR 2101930A5 FR 7127521 A FR7127521 A FR 7127521A FR 7127521 A FR7127521 A FR 7127521A FR 2101930 A5 FR2101930 A5 FR 2101930A5
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7127521A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salzgitter Maschinen AG
Original Assignee
Salzgitter Maschinen AG
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.)
Filing date
Publication date
Priority claimed from DE19702039569 external-priority patent/DE2039569B2/de
Priority claimed from DE19702051037 external-priority patent/DE2051037B2/de
Application filed by Salzgitter Maschinen AG filed Critical Salzgitter Maschinen AG
Application granted granted Critical
Publication of FR2101930A5 publication Critical patent/FR2101930A5/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/52—Extensible units located above or below standard props
    • E21D15/526—Extensible units located above or below standard props for step-by-step extension of the prop

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Earth Drilling (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
FR7127521A 1970-08-08 1971-07-27 Expired FR2101930A5 (enExample)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702039569 DE2039569B2 (de) 1970-08-08 1970-08-08 Stempelverlaengerungsvorrichtung
DE19702051037 DE2051037B2 (de) 1970-10-17 1970-10-17 Stempelverlaengerungsvorrichtung

Publications (1)

Publication Number Publication Date
FR2101930A5 true FR2101930A5 (enExample) 1972-03-31

Family

ID=25759563

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7127521A Expired FR2101930A5 (enExample) 1970-08-08 1971-07-27

Country Status (3)

Country Link
FR (1) FR2101930A5 (enExample)
GB (1) GB1349487A (enExample)
PL (1) PL70887B1 (enExample)

Also Published As

Publication number Publication date
GB1349487A (en) 1974-04-03
PL70887B1 (enExample) 1974-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse