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BR9301599A - Improved pumping unit - Google Patents

Improved pumping unit

Info

Publication number
BR9301599A
BR9301599A BR9301599A BR9301599A BR9301599A BR 9301599 A BR9301599 A BR 9301599A BR 9301599 A BR9301599 A BR 9301599A BR 9301599 A BR9301599 A BR 9301599A BR 9301599 A BR9301599 A BR 9301599A
Authority
BR
Brazil
Prior art keywords
pumping unit
improved pumping
improved
unit
pumping
Prior art date
Application number
BR9301599A
Other languages
Portuguese (pt)
Inventor
Catulo Viana Rego
Original Assignee
Petroleo Brasileiro Sa
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 Petroleo Brasileiro Sa filed Critical Petroleo Brasileiro Sa
Priority to BR9301599A priority Critical patent/BR9301599A/en
Publication of BR9301599A publication Critical patent/BR9301599A/en

Links

BR9301599A 1993-04-20 1993-04-20 Improved pumping unit BR9301599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR9301599A BR9301599A (en) 1993-04-20 1993-04-20 Improved pumping unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR9301599A BR9301599A (en) 1993-04-20 1993-04-20 Improved pumping unit

Publications (1)

Publication Number Publication Date
BR9301599A true BR9301599A (en) 1994-11-08

Family

ID=4056321

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9301599A BR9301599A (en) 1993-04-20 1993-04-20 Improved pumping unit

Country Status (1)

Country Link
BR (1) BR9301599A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015014163A1 (en) * 2013-07-30 2015-02-05 Yang Shunwei Walking-beam pumping unit with new support

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015014163A1 (en) * 2013-07-30 2015-02-05 Yang Shunwei Walking-beam pumping unit with new support

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Legal Events

Date Code Title Description
EE Request for examination
CKFC Appeal: appeal against refusal
FF Decision: granting
FG9A Patent or certificate of addition granted
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 20/04/2013