Drilldown: Patents
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Patents > Year granted:
1911
& Inventor country :
CH or
NL or
US
& Applicant type:
INDIV
& National tech categories:
FR 6.4
& CPCs:
CPC B64C2700/6295
& First filing :
Yes or
None
& Citations from after 1930:
None
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.