MX148836A - IMPROVED DRILL FOR EARTH DRILLING - Google Patents

IMPROVED DRILL FOR EARTH DRILLING

Info

Publication number
MX148836A
MX148836A MX17828579A MX17828579A MX148836A MX 148836 A MX148836 A MX 148836A MX 17828579 A MX17828579 A MX 17828579A MX 17828579 A MX17828579 A MX 17828579A MX 148836 A MX148836 A MX 148836A
Authority
MX
Mexico
Prior art keywords
earth drilling
improved drill
drill
improved
drilling
Prior art date
Application number
MX17828579A
Other languages
Spanish (es)
Inventor
Theodore Rivers Dysart
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Publication of MX148836A publication Critical patent/MX148836A/en

Links

MX17828579A 1978-06-30 1979-06-28 IMPROVED DRILL FOR EARTH DRILLING MX148836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92086878A 1978-06-30 1978-06-30

Publications (1)

Publication Number Publication Date
MX148836A true MX148836A (en) 1983-06-24

Family

ID=25444541

Family Applications (1)

Application Number Title Priority Date Filing Date
MX17828579A MX148836A (en) 1978-06-30 1979-06-28 IMPROVED DRILL FOR EARTH DRILLING

Country Status (4)

Country Link
AU (1) AU525959B2 (en)
CA (1) CA1104552A (en)
MX (1) MX148836A (en)
ZA (1) ZA792616B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016719A (en) * 1990-01-24 1991-05-21 Western Rock Bit Company Limited Rotary cone type rock bits

Also Published As

Publication number Publication date
AU4735879A (en) 1980-01-03
AU525959B2 (en) 1982-12-09
ZA792616B (en) 1980-06-25
CA1104552A (en) 1981-07-07

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