FR984496A - Apparatus for removing coal and similar materials - Google Patents

Apparatus for removing coal and similar materials

Info

Publication number
FR984496A
FR984496A FR984496DA FR984496A FR 984496 A FR984496 A FR 984496A FR 984496D A FR984496D A FR 984496DA FR 984496 A FR984496 A FR 984496A
Authority
FR
France
Prior art keywords
similar materials
removing coal
coal
materials
similar
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.)
Compagnie Ingersoll Rand
Original Assignee
Compagnie Ingersoll Rand
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 Compagnie Ingersoll Rand filed Critical Compagnie Ingersoll Rand
Application granted granted Critical
Publication of FR984496A publication Critical patent/FR984496A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/006—Means for anchoring the drilling machine to the ground

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR984496D 1943-10-05 1943-10-05 Apparatus for removing coal and similar materials Expired FR984496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR984496T 1943-10-05

Publications (1)

Publication Number Publication Date
FR984496A true FR984496A (en) 1951-07-06

Family

ID=9536760

Family Applications (1)

Application Number Title Priority Date Filing Date
FR984496D Expired FR984496A (en) 1943-10-05 1943-10-05 Apparatus for removing coal and similar materials

Country Status (1)

Country Link
FR (1) FR984496A (en)

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