Drilldown: Patents
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Patents > Office:
US
& Granted:
Yes
& Related to aircraft:
Yes
& Assigned to:
Benjamin Green Martin
& National tech categories
:
USPC 244/45R
or
USPC 416/116
& CPCs
:
CPC B64C11/006
or
CPC B64C33/02
& Citations from after 1930:
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Showing below up to 1 result in range #1 to #1.