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Priority to FR809349ApriorityCriticalpatent/FR1248522A/fr
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B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
FR809349A1959-10-281959-10-28Disque illustré bilatéralement et procédé pour sa fabrication
ExpiredFR1248522A
(fr)