BR8705229A - IMPROVEMENT IN THE ALUMINUM PREPARATION PROCESS - Google Patents

IMPROVEMENT IN THE ALUMINUM PREPARATION PROCESS

Info

Publication number
BR8705229A
BR8705229A BR8705229A BR8705229A BR8705229A BR 8705229 A BR8705229 A BR 8705229A BR 8705229 A BR8705229 A BR 8705229A BR 8705229 A BR8705229 A BR 8705229A BR 8705229 A BR8705229 A BR 8705229A
Authority
BR
Brazil
Prior art keywords
improvement
preparation process
aluminum preparation
aluminum
preparation
Prior art date
Application number
BR8705229A
Other languages
Portuguese (pt)
Inventor
Gustavo Torres Moure
Cecilia Maria Coelh Figueiredo
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 BR8705229A priority Critical patent/BR8705229A/en
Publication of BR8705229A publication Critical patent/BR8705229A/en

Links

BR8705229A 1987-10-02 1987-10-02 IMPROVEMENT IN THE ALUMINUM PREPARATION PROCESS BR8705229A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR8705229A BR8705229A (en) 1987-10-02 1987-10-02 IMPROVEMENT IN THE ALUMINUM PREPARATION PROCESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR8705229A BR8705229A (en) 1987-10-02 1987-10-02 IMPROVEMENT IN THE ALUMINUM PREPARATION PROCESS

Publications (1)

Publication Number Publication Date
BR8705229A true BR8705229A (en) 1989-04-18

Family

ID=4043247

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8705229A BR8705229A (en) 1987-10-02 1987-10-02 IMPROVEMENT IN THE ALUMINUM PREPARATION PROCESS

Country Status (1)

Country Link
BR (1) BR8705229A (en)

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Legal Events

Date Code Title Description
KD Fees due (letter patent)
FG Letter patent granted
B21A Extinguishment of a patent or of a certificate of addition of invention: extinguishment - article 78, item i of industrial property law

Free format text: PATENTE EXTINTA EM 02/10/2002