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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
B29D22/00—Producing hollow articles
B29D22/04—Spherical articles, e.g. balls
B—PERFORMING OPERATIONS; TRANSPORTING
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
B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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FR769182D1934-02-241934-02-24Procédé de fabrication de balles ou de ballons en caoutchouc et produits en résultant
ExpiredFR769182A
(fr)
Balles de golf et balles analogues comportant une enveloppe extérieure en balata, en gutta-percha, en caoutochouc ou matière similaire et leur procédé de fabrication