Drilldown: Patents
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Patents > Application number :
1912699135 or
344263D or
496388D or
car or
rudder
& Grant date:
November 1913
& National tech categories :
USPC 244/30 or
USPC 244/80 or
None
& CPCs :
CPC B64C13/00 or
CPC B64C3/385
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Showing below up to 1 result in range #1 to #1.