BR7700553A - Aperfeicoamento em broca para perfuracao de terra - Google Patents

Aperfeicoamento em broca para perfuracao de terra

Info

Publication number
BR7700553A
BR7700553A BR7700553A BR7700553A BR7700553A BR 7700553 A BR7700553 A BR 7700553A BR 7700553 A BR7700553 A BR 7700553A BR 7700553 A BR7700553 A BR 7700553A BR 7700553 A BR7700553 A BR 7700553A
Authority
BR
Brazil
Prior art keywords
drilling
drill
earth
earth drilling
drill drilling
Prior art date
Application number
BR7700553A
Other languages
English (en)
Inventor
L Stinson
E Galle
Original Assignee
Hughes Tool Co
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 Hughes Tool Co filed Critical Hughes Tool Co
Priority to BR7700553A priority Critical patent/BR7700553A/pt
Publication of BR7700553A publication Critical patent/BR7700553A/pt

Links

BR7700553A 1977-01-28 1977-01-28 Aperfeicoamento em broca para perfuracao de terra BR7700553A (pt)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR7700553A BR7700553A (pt) 1977-01-28 1977-01-28 Aperfeicoamento em broca para perfuracao de terra

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR7700553A BR7700553A (pt) 1977-01-28 1977-01-28 Aperfeicoamento em broca para perfuracao de terra

Publications (1)

Publication Number Publication Date
BR7700553A true BR7700553A (pt) 1978-08-15

Family

ID=4003268

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7700553A BR7700553A (pt) 1977-01-28 1977-01-28 Aperfeicoamento em broca para perfuracao de terra

Country Status (1)

Country Link
BR (1) BR7700553A (pt)

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