Drilldown: Patents
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- Airplane (18)
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- Patents (17614)
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- Publications (24569)
- Techtypes (2381)
Patents > Year filed:
1900 - 1999
& Full specification filed date:
December 31, 1969
& Application number
:
frame
or
propeller
& Supplementary to patent
:
1
or
1911-05-09
or
Patent AT-1911-57225
or
Patent DE-1895-98580
or
Patent GB-1909-8531
or
Patent HU-1901-24148
or
Patent US-1909-970771 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.