Drilldown: Patents
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Patents > Office:
FR
& Applicant type :
INDIV or
LTA or
А. Нейфельд
& Grant date:
April 30, 1910
& Supplementary to patent :
Patent FR-1909-404631.12136 or
None
& National tech categories:
FR 6.2
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.