GB346946A - - Google Patents

Info

Publication number
GB346946A
GB346946A GB8573/30A GB857330A GB346946A GB 346946 A GB346946 A GB 346946A GB 8573/30 A GB8573/30 A GB 8573/30A GB 857330 A GB857330 A GB 857330A GB 346946 A GB346946 A GB 346946A
Authority
GB
United Kingdom
Prior art keywords
class
sections
mining
march
street
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
GB8573/30A
Other languages
English (en)
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.)
Chicago Pneumatic Tool Co LLC
Original Assignee
Chicago Pneumatic Tool Co LLC
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 Chicago Pneumatic Tool Co LLC filed Critical Chicago Pneumatic Tool Co LLC
Publication of GB346946A publication Critical patent/GB346946A/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
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles

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)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
GB8573/30A 1929-03-25 1930-03-17 Expired GB346946A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US346946TA 1929-03-25 1929-03-25

Publications (1)

Publication Number Publication Date
GB346946A true GB346946A (enrdf_load_stackoverflow) 1931-04-23

Family

ID=31946040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8573/30A Expired GB346946A (enrdf_load_stackoverflow) 1929-03-25 1930-03-17

Country Status (1)

Country Link
GB (1) GB346946A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194571A (en) * 1986-08-13 1988-03-09 A Z Int Tool Co Drilling apparatus and cutter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194571A (en) * 1986-08-13 1988-03-09 A Z Int Tool Co Drilling apparatus and cutter
GB2194571B (en) * 1986-08-13 1990-05-16 A Z Int Tool Co Drilling apparatus and cutter

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