Drilldown: Patents
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Patents > Year granted:
1920 - 1929
& Inventor country
:
GB
or
HU
or
NL
& Applicant type
:
COMPANY
or
COMPANY + INDIV
or
INDIV
or
UNIV-PRO-GOV
& Applicant is inventor:
Yes
& Number of claims:
3-4 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 11 results in range #1 to #11.