Drilldown: Patents
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Patents > Applicant type :
INDIV or
Other
& National tech categories :
FR 6.3 or
USPC 244/22 or
None
& IPCs:
IPC B64C3/38
& Family year:
1909
& Number of claims:
3-4
Use the filters below to narrow your results.
Showing below up to 6 results in range #1 to #6.