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Publication of FR650044ApublicationCriticalpatent/FR650044A/fr
B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
B29D19/00—Producing buttons or semi-finished parts of buttons
B29D19/04—Producing buttons or semi-finished parts of buttons by cutting, milling, turning, stamping, or perforating moulded parts; Surface treatment of buttons
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FR650044D1927-01-311928-01-28Groupement de machines pour la fabrication de boutons en série
ExpiredFR650044A
(fr)