Drilldown: Patents
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Patents > Filing date:
July 1, 1918
& Application number :
490932D or
rudder
& Publication date:
May 15, 1919
& National tech categories:
FR 6.4
& CPCs :
CPC B64C2700/6218 or
CPC D03D11/00
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Showing below up to 1 result in range #1 to #1.