FR1344196A - Plane activated for coal extraction, usable in particular in mines - Google Patents

Plane activated for coal extraction, usable in particular in mines

Info

Publication number
FR1344196A
FR1344196A FR884379A FR884379A FR1344196A FR 1344196 A FR1344196 A FR 1344196A FR 884379 A FR884379 A FR 884379A FR 884379 A FR884379 A FR 884379A FR 1344196 A FR1344196 A FR 1344196A
Authority
FR
France
Prior art keywords
mines
usable
coal extraction
activated
plane
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
FR884379A
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia 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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Priority to FR884379A priority Critical patent/FR1344196A/en
Application granted granted Critical
Publication of FR1344196A publication Critical patent/FR1344196A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/46—Mineral freed by means not involving slitting by percussed planing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR884379A 1962-01-10 1962-01-10 Plane activated for coal extraction, usable in particular in mines Expired FR1344196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR884379A FR1344196A (en) 1962-01-10 1962-01-10 Plane activated for coal extraction, usable in particular in mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR884379A FR1344196A (en) 1962-01-10 1962-01-10 Plane activated for coal extraction, usable in particular in mines

Publications (1)

Publication Number Publication Date
FR1344196A true FR1344196A (en) 1963-11-29

Family

ID=8770214

Family Applications (1)

Application Number Title Priority Date Filing Date
FR884379A Expired FR1344196A (en) 1962-01-10 1962-01-10 Plane activated for coal extraction, usable in particular in mines

Country Status (1)

Country Link
FR (1) FR1344196A (en)

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