Drilldown: Patents
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Patents > Supplementary to patent:
None
& Related to aircraft
:
0.5
or
0?
or
1911-07-04
or
Yes
& Assigned to
:
L W F Engineering Company
or
Lawrence Sperry Aircraft Company
or
Moteurs Salmson
& National tech categories
:
USPC 244/45R
or
USPC 244/90R
or
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Showing below up to 5 results in range #1 to #5.