Drilldown: Patents
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Patents > Year granted:
1910 - 1919
& Office :
AH or
GB or
SAX
& Inventor country:
BE
& Applicant type :
INDIV or
А. Нейфельд or
None
& First filing:
Yes
Use the filters below to narrow your results.
Showing below up to 7 results in range #1 to #7.