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Individual
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Individual
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Priority to ES41002ApriorityCriticalpatent/ES41002A1/en
Publication of ES41002A1publicationCriticalpatent/ES41002A1/en
ES41002A1907-06-181907-06-18
Improvements in rotary motors, equally applicable to rotary pumps and compressor fans, exhausters and gas or air meters.
ExpiredES41002A1
(en)