BE555935A - - Google Patents

Info

Publication number
BE555935A
BE555935A BE555935DA BE555935A BE 555935 A BE555935 A BE 555935A BE 555935D A BE555935D A BE 555935DA BE 555935 A BE555935 A BE 555935A
Authority
BE
Belgium
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 BE555935A publication Critical patent/BE555935A/xx

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
    • E21D15/14—Telescopic props
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
    • E21D15/45—Hydraulic, pneumatic, or hydraulic-pneumatic props having closed fluid system, e.g. with built-in pumps or accumulators

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)
  • Valves And Accessory Devices For Braking Systems (AREA)
BE555935D 1956-03-19 BE555935A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT859878X 1956-03-19

Publications (1)

Publication Number Publication Date
BE555935A true BE555935A (enrdf_load_stackoverflow)

Family

ID=3682329

Family Applications (1)

Application Number Title Priority Date Filing Date
BE555935D BE555935A (enrdf_load_stackoverflow) 1956-03-19

Country Status (3)

Country Link
BE (1) BE555935A (enrdf_load_stackoverflow)
FR (1) FR1173246A (enrdf_load_stackoverflow)
GB (1) GB859878A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
GB859878A (en) 1961-01-25
FR1173246A (fr) 1959-02-23

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