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270с
and
heir ure.
I vie.
handbook for
chemical patents
BY
EDWARD THOMAS, A.B.
Member of New York and District of Columbia Bars Former Ass't Examiner, U. S. Patent Office
Member of
American Chemical Society; American Bar Association; American Patent Law Association; American Institute Mining and Metallurgical Engineers; New York Patent Law Association
"
I94O
CHEMICAL PUBLISHING CO., Inc. New York, N. Y.