ES167258A1 - Un dispositivo para la producción continua de hilos finos partiendo de una masa líquida de vidrio o de una sustancia fusible y plástica similar
- Google Patents
Un dispositivo para la producción continua de hilos finos partiendo de una masa líquida de vidrio o de una sustancia fusible y plástica similar
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ES167258A1944-08-181944-08-18Un dispositivo para la producción continua de hilos finos partiendo de una masa líquida de vidrio o de una sustancia fusible y plástica similar
ExpiredES167258A1
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