TY - BOOK AU - Bertschinger,André TI - Le problème de la qualité PY - 1951///] CY - [Place of publication not identified] PB - [publisher not identified] KW - Clock and watch making KW - Quality control KW - Switzerland KW - Watch (general) KW - quality control KW - La Suisse Horlogere KW - Making Industry KW - Bertschinger, Andre N1 - Offprint from a series of ten articles entitled: Contrôle de la qualité, taken separately from: La Suisse horlogère. Edition suisse. - 1950, nos 2, 6, 9, 15, 21, 49 ; 1951, nos 3, 6, 7, 12; "Tirage à part de 'La suisse horlogère'" ER -