Drilldown: Patents
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Patents > Office
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CL
or
DE
& Applicant firm
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Blackburn Aeroplane and Motor Co.
or
Luft Fahrzeug G.m.b.H.
or
Rumpler-Werke A.-G. in Berlin-Johannisthal
& National tech categories
:
USPC 244/30
or
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Showing below up to 1 result in range #1 to #1.