Drilldown: Patents
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Patents > Year filed:
1911
& Inventor country :
HU or
NL or
US
& Applicant type :
INDIV or
None
& IPCs :
IPC B64C13/00 or
IPC F28F21/04
& Number of claims:
3-4
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.