Drilldown: Patents
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Patents > Year filed:
1914
& Filing date:
August 1914
& Related to aircraft :
Yes or
flapping or
marine or
Other
& National tech categories :
DE 77h.5 or
USPC 244/233 or
None
& Number of claims:
3
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.