Drilldown: Patents
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Patents > Applicant type :
1 or
Hermann Burkardt or
INDIV
& Filing date:
1917
& Granted :
No or
Yes
& Supplementary to patent :
Patent GB-1911-29012 or
None
& National tech categories :
FR 6.3 or
None
& IPCs:
IPC B64C39/00
Use the filters below to narrow your results.
Showing below up to 5 results in range #1 to #5.