FR574299A - - Google Patents

Info

Publication number
FR574299A
FR574299A FR574299DA FR574299A FR 574299 A FR574299 A FR 574299A FR 574299D A FR574299D A FR 574299DA FR 574299 A FR574299 A FR 574299A
Authority
FR
France
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)
Publication date
Application granted granted Critical
Publication of FR574299A publication Critical patent/FR574299A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam

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)
FR574299D Expired FR574299A (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
FR574299A true FR574299A (enrdf_load_stackoverflow) 1924-07-09

Family

ID=1539312

Family Applications (1)

Application Number Title Priority Date Filing Date
FR574299D Expired FR574299A (enrdf_load_stackoverflow)

Country Status (1)

Country Link
FR (1) FR574299A (enrdf_load_stackoverflow)

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