FR1575228A - - Google Patents

Info

Publication number
FR1575228A
FR1575228A FR1575228DA FR1575228A FR 1575228 A FR1575228 A FR 1575228A FR 1575228D A FR1575228D A FR 1575228DA FR 1575228 A FR1575228 A FR 1575228A
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)
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 filed Critical
Application granted granted Critical
Publication of FR1575228A publication Critical patent/FR1575228A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/58—Machines slitting by drilling hole on hole

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Earth Drilling (AREA)
FR1575228D 1967-08-17 1968-07-30 Expired FR1575228A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH63632A DE1283176B (de) 1967-08-17 1967-08-17 Grossbohreinrichtung fuer die Gewinnung von Mineralien, insbesondere von Kohle

Publications (1)

Publication Number Publication Date
FR1575228A true FR1575228A (enrdf_load_stackoverflow) 1969-07-18

Family

ID=7162394

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1575228D Expired FR1575228A (enrdf_load_stackoverflow) 1967-08-17 1968-07-30

Country Status (3)

Country Link
JP (1) JPS4931841B1 (enrdf_load_stackoverflow)
DE (1) DE1283176B (enrdf_load_stackoverflow)
FR (1) FR1575228A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53117434U (enrdf_load_stackoverflow) * 1977-02-24 1978-09-19

Also Published As

Publication number Publication date
JPS4931841B1 (enrdf_load_stackoverflow) 1974-08-26
DE1283176B (de) 1968-11-21

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Legal Events

Date Code Title Description
ST Notification of lapse