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Un nuevo modelo de criadora caracterizado por componerse de un cuerpo (figura 2) cuadrangular de hierro fundido con una superficie de 30 por 30 centímetros provisto de compuerta en el frente para el vaciado y de emparrillado móvil a, accionado por una manivela. Lateralmente lleva un tubo acodado de chapa que es el registro de aire b que puede ser cerrado más o menos por el obturador c solidario de un dispositivo de palancas y contrapeso d que constituye el regulador térmico de la criadora.
ES0002323U1934-01-311934-01-31Modelo de criadora.
ExpiredES2323Y
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