Drilldown: Patents
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Patents > Year granted:
1830 - 1839
& Office:
BE
& Applicant type :
INDIV or
UNIV-PRO-GOV
& Application number :
1732817 or
None
& IPCs :
IPC B64C31/06 or
None
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.