FR1425937A - Traction device - Google Patents

Traction device

Info

Publication number
FR1425937A
FR1425937A FR7892A FR7892A FR1425937A FR 1425937 A FR1425937 A FR 1425937A FR 7892 A FR7892 A FR 7892A FR 7892 A FR7892 A FR 7892A FR 1425937 A FR1425937 A FR 1425937A
Authority
FR
France
Prior art keywords
traction device
traction
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
FR7892A
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.)
Heinrich de Fries GmbH
Original Assignee
Heinrich de Fries GmbH
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 Heinrich de Fries GmbH filed Critical Heinrich de Fries GmbH
Application granted granted Critical
Publication of FR1425937A publication Critical patent/FR1425937A/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
    • E21D15/60—Devices for withdrawing props or chocks

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)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
FR7892A 1964-03-10 1965-03-04 Traction device Expired FR1425937A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF42258A DE1191778B (en) 1964-03-10 1964-03-10 Pulling device

Publications (1)

Publication Number Publication Date
FR1425937A true FR1425937A (en) 1966-01-24

Family

ID=7099011

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7892A Expired FR1425937A (en) 1964-03-10 1965-03-04 Traction device

Country Status (2)

Country Link
DE (1) DE1191778B (en)
FR (1) FR1425937A (en)

Also Published As

Publication number Publication date
DE1191778B (en) 1965-04-29

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