ES139739A1 - Perfeccionamientos en los mecanismos transportadores de decenas para cajas registradoras, máquinas calculadoras y similares.
- Google Patents
Perfeccionamientos en los mecanismos transportadores de decenas para cajas registradoras, máquinas calculadoras y similares.
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ES139739A1935-10-041935-10-04Perfeccionamientos en los mecanismos transportadores de decenas para cajas registradoras, máquinas calculadoras y similares.
ExpiredES139739A1
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