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Industrial Hygiene Digest
INDUSTRIAL HEALTH NEWS
LITERATURE ABSTRACTS
MEDICAL ENGINEERING CHEMICAL TOXICOLOGICAL LEGAL
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MAY, 1964 (Vol. 28, No. S)
INDUSTRIAL HYGIENE FOUNDATION
MELLON INSTITUTE
4400 FIFTH AVENUE
PITTSBURGH, PA. 1S213
SC-ALL-11520
SCF-ALLF-02500
03121440
PLAINTIFF'S EXHIBIT