Instruction sheet for the Predictor Pregnancy Test; sheet includes 12 images demonstrating how test is to be used Margaret Crane, the inventor of the first home pregnancy test, worked as a graphic ...
Like many other women whose inventions changed the world, Margaret M. Crane almost didn’t get credit for her work. She certainly didn’t get paid for it. Even now, few people know her name. Those who ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Margaret Crane, the inventor of the ...
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