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Women's contributions in the field of invention. Washington: G.P.O., 1923.
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U. S. DEPARTMENT OF LABOR
JAMES J. DAVIS, SECRETARY

WOMEN'S BUREAU
MARY ANDERSON, Director


BULLETIN 0? THE WOMEN'S BUREAU. NO. 28


WOMEN'S CONTRII~UTIONS IN
THE FIELD OF INVENTION

A Study of the Reeords of the
United States Patent Office


kill)


WASHINGTON
GOVERNMENT PRINTING OFFICE
:9
1923