Drilldown: Patents
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Patents > Year granted:
1911
& Inventor country :
CH or
NL or
US
& Applicant type :
INDIV or
None
& National tech categories:
FR 6.4
& CPCs :
CPC B64B1/00 or
CPC B64C2700/6235 or
CPC B64C2700/6295
& First filing:
Yes
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Showing below up to 4 results in range #1 to #4.