Drilldown: Patents
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- Airplane (18)
- Airship (15)
- Companies (480)
- Event (141)
- Letters (683)
- Organizations (967)
- Patents (17615)
- Person (2154)
- Publications (24571)
- Techtypes (2381)
Patents > Year granted:
1920 - 1929
& Office
:
HU
or
IN
or
IT
& Applicant type:
INDIV
& Application number
:
frame
or
None
& IPCs
:
IPC B64B1/00
or
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Use the filters below to narrow your results.
aerodynamics (1) ·
air pressure (1) ·
airplane (5) ·
airship (2) ·
Altimeter (2) ·
Altitude (2) ·
biplane (1) ·
construction (3) ·
control (1) ·
Cooling (1) ·
descent (1) ·
design (3) ·
frame (2) ·
Gas (1) ·
Illumination (2) ·
Instrument (2) ·
lift (1) ·
LTA (2) ·
Motors (1) ·
parachutes (2) ·
propellers (1) ·
Rigid (1) ·
safety (2) ·
sustentation (1) ·
wings (2) ·
wood (1)
None (4) ·
Patent 1915-11-05 Käthe Paulus (1) ·
Patent DE-1915-08-16 János Windhoff (1) ·
Patent DE-1916-01-23 Albert Rupp (1) ·
Patent DE-1916-05-29 Reinhold Richter (1) ·
Patent DE-1916-10-07 Oscar Gerhardt (1) ·
Patent DE-1917-02-16 Oscar Gerhardt (1) ·
Patent DE-1917-05-29-Detlev Zickler (1) ·
Patent HU-1917-76911 (1)
Showing below up to 11 results in range #1 to #11.