Drilldown: Patents
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Patents > Inventor country :
BE or
CH or
DE or
HU or
NL
& Applicant type :
Hermann Burkardt or
INDIV
& Applicant is inventor:
None
& Publication date:
1960 - 1969
& CPCs :
CPC B64B1/40 or
CPC B64C23/005 or
None
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.