FR937534A - Prop hat - Google Patents

Prop hat

Info

Publication number
FR937534A
FR937534A FR937534DA FR937534A FR 937534 A FR937534 A FR 937534A FR 937534D A FR937534D A FR 937534DA FR 937534 A FR937534 A FR 937534A
Authority
FR
France
Prior art keywords
hat
prop
prop hat
Prior art date
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
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.)
Evence Coppee & Cie
Original Assignee
Evence Coppee & Cie
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
Application filed by Evence Coppee & Cie filed Critical Evence Coppee & Cie
Application granted granted Critical
Publication of FR937534A publication Critical patent/FR937534A/en
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
    • E21D15/54—Details of the ends of props

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)
FR937534D 1946-03-07 1946-12-26 Prop hat Expired FR937534A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE937534X 1946-03-07

Publications (1)

Publication Number Publication Date
FR937534A true FR937534A (en) 1948-08-19

Family

ID=3887801

Family Applications (1)

Application Number Title Priority Date Filing Date
FR937534D Expired FR937534A (en) 1946-03-07 1946-12-26 Prop hat

Country Status (1)

Country Link
FR (1) FR937534A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE864539C (en) * 1949-08-27 1953-01-26 Alexander Schubert Longwall mining
US4073454A (en) * 1976-07-26 1978-02-14 Sauber Charles J Outrigger pad

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE864539C (en) * 1949-08-27 1953-01-26 Alexander Schubert Longwall mining
US4073454A (en) * 1976-07-26 1978-02-14 Sauber Charles J Outrigger pad

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