FR865621A - Coffret antigrisouteux - Google Patents

Coffret antigrisouteux

Info

Publication number
FR865621A
FR865621A FR865621DA FR865621A FR 865621 A FR865621 A FR 865621A FR 865621D A FR865621D A FR 865621DA FR 865621 A FR865621 A FR 865621A
Authority
FR
France
Prior art keywords
freeze box
freeze
box
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
English (en)
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.)
Hermes Patentverwertungs GmbH
Original Assignee
Hermes Patentverwertungs 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 Hermes Patentverwertungs GmbH filed Critical Hermes Patentverwertungs GmbH
Application granted granted Critical
Publication of FR865621A publication Critical patent/FR865621A/fr
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
    • E21F9/00—Devices preventing sparking of machines or apparatus

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)
FR865621D 1939-01-10 1940-05-14 Coffret antigrisouteux Expired FR865621A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE865621X 1939-01-10

Publications (1)

Publication Number Publication Date
FR865621A true FR865621A (fr) 1941-05-29

Family

ID=6801876

Family Applications (1)

Application Number Title Priority Date Filing Date
FR865621D Expired FR865621A (fr) 1939-01-10 1940-05-14 Coffret antigrisouteux

Country Status (1)

Country Link
FR (1) FR865621A (fr)

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