Drilldown: Patents
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- Patents (17549)
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Patents > Filing date:
1900 - 1909
& Application number:
None
& Related to aircraft :
0? or
1911-07-04 or
1912-01-30 or
No or
Yes
& National tech categories:
USPC 244/28
& Number of text pages:
2-3
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.