FR419537A - Automatic mechanical threshing device for soundings and boreholes - Google Patents

Automatic mechanical threshing device for soundings and boreholes

Info

Publication number
FR419537A
FR419537A FR419537A FR419537DA FR419537A FR 419537 A FR419537 A FR 419537A FR 419537 A FR419537 A FR 419537A FR 419537D A FR419537D A FR 419537DA FR 419537 A FR419537 A FR 419537A
Authority
FR
France
Prior art keywords
soundings
boreholes
threshing device
automatic mechanical
mechanical threshing
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
FR419537A
Other languages
French (fr)
Inventor
Francois Cordet
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.)
FRANCOIS CORDET
Original Assignee
FRANCOIS CORDET
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 FRANCOIS CORDET filed Critical FRANCOIS CORDET
Application granted granted Critical
Publication of FR419537A publication Critical patent/FR419537A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B1/00—Percussion drilling
    • E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR419537A 1910-08-16 1910-08-16 Automatic mechanical threshing device for soundings and boreholes Expired FR419537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR419537T 1910-08-16

Publications (1)

Publication Number Publication Date
FR419537A true FR419537A (en) 1911-01-09

Family

ID=1462752

Family Applications (1)

Application Number Title Priority Date Filing Date
FR419537A Expired FR419537A (en) 1910-08-16 1910-08-16 Automatic mechanical threshing device for soundings and boreholes

Country Status (1)

Country Link
FR (1) FR419537A (en)

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