Drilldown: Patents
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Patents > Applicant type 
:
AGENT or
Hermann Burkardt or
INDIV or
А. Нейфельд
& Supplementary to patent :
Patent FR-1909-420322 or
Patent GB-1908-4519 or
None
& CPCs :
CPC B64C11/006 or
CPC B64C35/00
& Number of claims:
2-3
:
AGENT or
Hermann Burkardt or
INDIV or
А. Нейфельд
& Supplementary to patent :
Patent FR-1909-420322 or
Patent GB-1908-4519 or
None
& CPCs :
CPC B64C11/006 or
CPC B64C35/00
& Number of claims:
2-3 Use the filters below to narrow your results.
Year filed:
Year granted:
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Tech fields:
propulsion (11) ·
propellers (9) ·
propeller (8) ·
marine (6) ·
paddle-wheel (6) ·
None (6) ·
Windmill (6) ·
airplane (5) ·
aerodynamics (5) ·
design (5) ·
sustentation (4) ·
feathering (3) ·
takeoff (3) ·
paddle wheel (3) ·
LTA (3) ·
launching (3) ·
hydroaeroplane (3) ·
hydroplane (3) ·
control (3)
Filing date:
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Granted:
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Supplementary to patent: (Click arrow to add another value)
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CPCs: (Click arrow to add another value)
Family year:
Cites these patents:
Number of figures:
Showing below up to 57 results in range #1 to #57.
