Relatório 20-F

Form 20-F 2002

Form 20-F 2002

2002

For the fiscal year ending on December 31 each year, presented to the Securities and Exchange Commission (SEC)

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Form 20-F 2001

Form 20-F 2001

2001

For the fiscal year ending on December 31 each year, presented to the Securities and Exchange Commission (SEC)

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Form 20-F 2000

Form 20-F 2000

2000

For the fiscal year ending on December 31 each year, presented to the Securities and Exchange Commission (SEC)

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Relatório 20-F 1999

Relatório 20-F 1999

1999

Por el año fiscal terminado en diciembre de cada año presentada a la Securities and Exchange Commission (SEC).

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