Drilldown: Patents
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Patents > Inventor country :
HU or
IT or
NL or
US
& Applicant type :
INDIV or
INIDV or
None
& Filing date:
1920 - 1929
& Granted :
Yes or
None
& Number of claims:
3-4
Use the filters below to narrow your results.
Showing below up to 5 results in range #1 to #5.