FR484801A - Perfectionnements aux accouplements de tuyaux en toile - Google Patents

Perfectionnements aux accouplements de tuyaux en toile

Info

Publication number
FR484801A
FR484801A FR484801DA FR484801A FR 484801 A FR484801 A FR 484801A FR 484801D A FR484801D A FR 484801DA FR 484801 A FR484801 A FR 484801A
Authority
FR
France
Prior art keywords
refinements
pipe couplings
canvas pipe
canvas
couplings
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)
Inventor
Norman Blythe Braly
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR484801A publication Critical patent/FR484801A/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
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/04—Air ducts
    • E21F1/06—Duct 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)
FR484801D 1916-08-08 1917-03-05 Perfectionnements aux accouplements de tuyaux en toile Expired FR484801A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US484801XA 1916-08-08 1916-08-08

Publications (1)

Publication Number Publication Date
FR484801A true FR484801A (fr) 1917-11-13

Family

ID=1521568

Family Applications (1)

Application Number Title Priority Date Filing Date
FR484801D Expired FR484801A (fr) 1916-08-08 1917-03-05 Perfectionnements aux accouplements de tuyaux en toile

Country Status (1)

Country Link
FR (1) FR484801A (fr)

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