ES162072A1 -
IMPROVEMENTS INTRODUCED IN INSTRUMENTS FOR MECHANICAL REPRODUCTION ON THE SAME SCALE OR IN DIFFERENT SCALE OF DRAWINGS OR SIMILAR
- Google Patents
IMPROVEMENTS INTRODUCED IN INSTRUMENTS FOR MECHANICAL REPRODUCTION ON THE SAME SCALE OR IN DIFFERENT SCALE OF DRAWINGS OR SIMILAR
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NISTRI UMBERTO
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NISTRI UMBERTO
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Priority to ES162072ApriorityCriticalpatent/ES162072A1/en
Publication of ES162072A1publicationCriticalpatent/ES162072A1/en
ES162072A1943-06-221943-06-22
IMPROVEMENTS INTRODUCED IN INSTRUMENTS FOR MECHANICAL REPRODUCTION ON THE SAME SCALE OR IN DIFFERENT SCALE OF DRAWINGS OR SIMILAR
ExpiredES162072A1
(en)