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ES287075A1963-04-161963-04-16Perfeccionamientos en la extrusión de perfiles de materiales plásticos, mediante sistema de alta refrigeración
ExpiredES287075A1
(es)
Unidad acondicionadora para el calentamiento, refrescamien-to, acondicionamiento y ventilacion de ambientes, con bate- ria intercambiadora de calor y ventiladores de elevada pre- ponderancia.