Drilldown: Patents
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Patents > Inventor country :
DK or
RO
& Applicant type :
COMPANY or
Hermann Burkardt or
INDIV or
INDIV + COMPANY
& Publication date:
August 27, 1906
& Supplementary to patent:
None
& CPCs :
CPC B64B1/40 or
CPC B64C2700/6212
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