Drilldown: Patents
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Patents > Office :
DE or
SU
& National tech categories:
DE 77
& CPCs :
CPC B64C33/02 or
CPC E21D15/38
Use the filters below to narrow your results.
A. Kupper (1) ·
August von Wedell (1) ·
Bernhard Eckert (1) ·
Burchard Plate (1) ·
Charles Pagé (1) ·
Eduard Nultsch (1) ·
Federico Capone (1) ·
Franz F. C. Dähn (1) ·
Frederick William Brearey (1) ·
Georg Fischer (1) ·
Hermann Amann (1) ·
Hermann Israel (1) ·
Hugo Baudisch (1) ·
Hugo Hennig (1) ·
Richard William Cowan (1) ·
Robert Wiesendanger (1) ·
Rudolf Chillingworth (1)
None (3) ·
aerial propeller (1) ·
airfoil (1) ·
airship (4) ·
balloon (1) ·
control (1) ·
electric (1) ·
electricity (1) ·
flapping (2) ·
flying machine (1) ·
hybrid (1) ·
LTA (5) ·
marine (1) ·
motor (1) ·
navigation (3) ·
ornithopter (3) ·
piloting (1) ·
powered (1) ·
propulsion (4) ·
structure (1) ·
wing (1)
Showing below up to 15 results in range #1 to #15.
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- Calendar: Year filed
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- Calendar: Full specification filed date
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