Helen Augusta Blanchard: Vingt-Huit Brevets pour une Meilleure Machine à Coudre
Helen Augusta Blanchard: Twenty-Eight Patents for a Better Sewing Machine
Helen Augusta Blanchard, originaire de Portland dans le Maine, déposa vingt-huit brevets entre 1873 et 1915, dont un mécanisme de point en zigzag devenu un standard de couture, améliorant les machines par un perfectionnement incrémental sans relâche plutôt que par une seule grande invention.
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Helen Augusta Blanchard: Twenty-Eight Patents for a Better Sewing Machine
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incremental invention
women inventors
sewing technology
mechanical refinement
patent history
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