BE493622A - - Google Patents

Info

Publication number
BE493622A
BE493622A BE493622DA BE493622A BE 493622 A BE493622 A BE 493622A BE 493622D A BE493622D A BE 493622DA BE 493622 A BE493622 A BE 493622A
Authority
BE
Belgium
Prior art keywords
seals
section
rubber
metal
core
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE493622A publication Critical patent/BE493622A/fr

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/04Air ducts
    • E21F1/06Duct connections

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)
  • Duct Arrangements (AREA)
BE493622D BE493622A (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
BE493622A true BE493622A (enrdf_load_stackoverflow)

Family

ID=137580

Family Applications (1)

Application Number Title Priority Date Filing Date
BE493622D BE493622A (enrdf_load_stackoverflow)

Country Status (1)

Country Link
BE (1) BE493622A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116696440A (zh) * 2023-07-17 2023-09-05 中交第二公路工程局有限公司 一种三通变径转弯风管的f型压入式通风系统及使用方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116696440A (zh) * 2023-07-17 2023-09-05 中交第二公路工程局有限公司 一种三通变径转弯风管的f型压入式通风系统及使用方法

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