Drilldown: Patents
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Patents > Inventor country :
AH or
GB or
IT or
US
& Applicant is inventor:
Yes
& Grant date:
1913
& National tech categories :
FR 6.2 or
HU V/h or
USPC 244/80
& Number of claims:
16-50
Use the filters below to narrow your results.
Showing below up to 3 results in range #1 to #3.