FR347411A - Improvements to perforators - Google Patents

Improvements to perforators

Info

Publication number
FR347411A
FR347411A FR347411A FR347411DA FR347411A FR 347411 A FR347411 A FR 347411A FR 347411 A FR347411 A FR 347411A FR 347411D A FR347411D A FR 347411DA FR 347411 A FR347411 A FR 347411A
Authority
FR
France
Prior art keywords
perforators
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
FR347411A
Other languages
French (fr)
Inventor
Frank Lloyd Roudebush
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 FR347411A publication Critical patent/FR347411A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes

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)
FR347411A 1904-10-25 1904-10-25 Improvements to perforators Expired FR347411A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR347411T 1904-10-25

Publications (1)

Publication Number Publication Date
FR347411A true FR347411A (en) 1905-03-09

Family

ID=1396050

Family Applications (1)

Application Number Title Priority Date Filing Date
FR347411A Expired FR347411A (en) 1904-10-25 1904-10-25 Improvements to perforators

Country Status (1)

Country Link
FR (1) FR347411A (en)

Similar Documents

Publication Publication Date Title
FR349635A (en) Improvements to explosives
FR347411A (en) Improvements to perforators
FR340856A (en) Improvements to davits
FR345775A (en) Improvements to aviaplanes
FR339455A (en) Improvements to jealousies
FR343255A (en) Improvements to velocipeds
FR348690A (en) Improvements to the rides
FR347825A (en) Improvements to indicators
FR339439A (en) Improvements to secateurs
FR346936A (en) Improvements to airplanes
FR349600A (en) Improvements to hooks
FR339759A (en) Improvements to ties
FR339311A (en) Improvements to plows
FR350371A (en) Improvements to explosives
FR343061A (en) Improvements to mowers
FR349867A (en) Improvements to ventilators
FR339421A (en) Improvements to phones
FR341351A (en) Improvements to reamers
FR353468A (en) Improvements to telephone auto-switches
FR343299A (en) Perforation improvements
FR343361A (en) Perforation improvements
FR343169A (en) Improvements to wardrobes
FR347075A (en) Improvements to burners
FR360748A (en) Improvements made to lubricators
FR344164A (en) Improvements made to swings