0001209191-05-020213 | 4/A | Charles River Laboratories International, Inc.

Investor Relations

Charles River provides essential products and services to help pharmaceutical and biotechnology companies, government agencies and leading academic institutions around the globe accelerate their research and drug development efforts. Our dedicated employees are focused on providing clients with exactly what they need to improve and expedite the discovery, early-stage development and safe manufacture of new therapies for the patients who need them.

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Form

4/A

Filing Date

Apr 11, 2005

Document Date

Dec 21, 2004

Form Description

Amendment to a previously filed 4

Filing Group

3,4,5

Company

Charles River Laboratories International, Inc.

Issuer

CHARLES RIVER LABORATORIES INTERNATIONAL, INC.

Filer

MASSARO GEORGE

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Investor Relations

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