Drilldown: Patents
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- Patents (17611)
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Patents > Year filed:
1913
& Applicant type :
COMPANY or
INIDV
& National tech categories:
DE 77h
& IPCs :
IPC B64C3/38 or
IPC B64C35/00 or
None
& First filing :
No or
None
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.