DE161772C - - Google Patents

Info

Publication number
DE161772C
DE161772C DENDAT161772D DE161772DA DE161772C DE 161772 C DE161772 C DE 161772C DE NDAT161772 D DENDAT161772 D DE NDAT161772D DE 161772D A DE161772D A DE 161772DA DE 161772 C DE161772 C DE 161772C
Authority
DE
Germany
Prior art keywords
water
flap
weight
pipe
lack
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.)
Active
Application number
DENDAT161772D
Other languages
German (de)
English (en)
Publication of DE161772C publication Critical patent/DE161772C/de
Active 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
    • E21F15/00—Methods or devices for placing filling-up materials in underground workings
    • E21F15/08—Filling-up hydraulically or pneumatically

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)
  • Pipe Accessories (AREA)
DENDAT161772D Active DE161772C (cg-RX-API-DMAC10.html)

Publications (1)

Publication Number Publication Date
DE161772C true DE161772C (cg-RX-API-DMAC10.html)

Family

ID=427618

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT161772D Active DE161772C (cg-RX-API-DMAC10.html)

Country Status (1)

Country Link
DE (1) DE161772C (cg-RX-API-DMAC10.html)

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