FR976722A - Portable device for the schistification of coal galleries - Google Patents

Portable device for the schistification of coal galleries

Info

Publication number
FR976722A
FR976722A FR976722DA FR976722A FR 976722 A FR976722 A FR 976722A FR 976722D A FR976722D A FR 976722DA FR 976722 A FR976722 A FR 976722A
Authority
FR
France
Prior art keywords
schistification
galleries
coal
portable device
portable
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.)
MATEMINE
Original Assignee
MATEMINE
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 MATEMINE filed Critical MATEMINE
Application granted granted Critical
Publication of FR976722A publication Critical patent/FR976722A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • E21F5/08—Rock dusting of mines; Depositing other protective substances
    • E21F5/10—Devices for rock dusting

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)
FR976722D 1948-10-14 1948-10-14 Portable device for the schistification of coal galleries Expired FR976722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR976722T 1948-10-14

Publications (1)

Publication Number Publication Date
FR976722A true FR976722A (en) 1951-03-21

Family

ID=9519041

Family Applications (1)

Application Number Title Priority Date Filing Date
FR976722D Expired FR976722A (en) 1948-10-14 1948-10-14 Portable device for the schistification of coal galleries

Country Status (1)

Country Link
FR (1) FR976722A (en)

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