Drilldown: Patents
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Patents > Supplementary to patent
:
Patent FR-1916-502839
or
Patent US-1913-04-21 George Raymond Lawrence
or
None
& Assigned to:
None
& National tech categories
:
DE 77h
or
USPC 244/20
& IPCs
:
IPC B64C3/18
or
IPC B64C39/00
& Number of text pages:
4-20 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 2 results in range #1 to #2.