Drilldown: Patents
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- Techtypes (2376)
Patents > Year granted:
1910 - 1919
& Office :
BE or
NL or
UN or
Other
& Inventor country:
US
& Related to aircraft :
0 or
1
& National tech categories:
FR 6.4
& Family year:
1917
Use the filters below to narrow your results.
Showing below up to 6 results in range #1 to #6.