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BR9202897A - IMPROVEMENT IN DRILLING DEVICE FOR PREDIAL CONNECTION - Google Patents

IMPROVEMENT IN DRILLING DEVICE FOR PREDIAL CONNECTION

Info

Publication number
BR9202897A
BR9202897A BR9202897A BR9202897A BR9202897A BR 9202897 A BR9202897 A BR 9202897A BR 9202897 A BR9202897 A BR 9202897A BR 9202897 A BR9202897 A BR 9202897A BR 9202897 A BR9202897 A BR 9202897A
Authority
BR
Brazil
Prior art keywords
predial
improvement
connection
drilling device
drilling
Prior art date
Application number
BR9202897A
Other languages
Portuguese (pt)
Inventor
Paulo Batista Felippe
Original Assignee
Tigre Tubos & Conexoes
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 Tigre Tubos & Conexoes filed Critical Tigre Tubos & Conexoes
Priority to BR9202897A priority Critical patent/BR9202897A/en
Publication of BR9202897A publication Critical patent/BR9202897A/en

Links

BR9202897A 1992-07-28 1992-07-28 IMPROVEMENT IN DRILLING DEVICE FOR PREDIAL CONNECTION BR9202897A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR9202897A BR9202897A (en) 1992-07-28 1992-07-28 IMPROVEMENT IN DRILLING DEVICE FOR PREDIAL CONNECTION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR9202897A BR9202897A (en) 1992-07-28 1992-07-28 IMPROVEMENT IN DRILLING DEVICE FOR PREDIAL CONNECTION

Publications (1)

Publication Number Publication Date
BR9202897A true BR9202897A (en) 1994-02-01

Family

ID=4054623

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9202897A BR9202897A (en) 1992-07-28 1992-07-28 IMPROVEMENT IN DRILLING DEVICE FOR PREDIAL CONNECTION

Country Status (1)

Country Link
BR (1) BR9202897A (en)

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Legal Events

Date Code Title Description
FF Decision: granting
KD Fees due (letter patent)
FG9A Patent or certificate of addition granted
PC Transfer

Free format text: TIGRE S/A - TUBOS E CONEXOES (BR)

B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 28/07/2012