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Industrial Hygiene Digest
INDUSTRIAL HEALTH NEWS &
LITERATURE ABSTRACTS
MEDICAL ENGINEERING CHEMICAL TOXICOLOGICAL LEGAL
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AUGUST, 1967 (Vol. 31, No. 8}
INDUSTRIAL HYGIENE FOUNDATION
MELLON INSTITUTE
4400 FIFTH AVENUE
PITTSBURGH, PA. 1S213
SC-ALL-13080
SCF-ALLF-02890
PLAINTIFF'S ( EXHIBIT
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03122568