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Necchi SpA
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Necchi SpA
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Priority to FR791538ApriorityCriticalpatent/FR1219825A/fr
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Publication of FR1219825ApublicationCriticalpatent/FR1219825A/fr
D05B47/00—Needle-thread tensioning devices; Applications of tensometers
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Engineering & Computer Science
(AREA)
Textile Engineering
(AREA)
FR791538A1958-10-111959-04-08Dispositif pour la mise sous tension du fil dans les machines à coudre et machine munie de ce dispositif
ExpiredFR1219825A
(fr)
Procédé pour la coupe du fil supérieur et du fil inférieur, dans les machines à coudre à point de navette, et dispositif pour la mise en oeuvre de ce procédé