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B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR38281D1929-10-251929-10-25Perfectionnements apportés à la fabrication, en fonderie, des surfaces ou panneauxminces de grande étendue superficielle
ExpiredFR38281E
(fr)