Drilldown: Patents
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Patents > Year filed:
1920 - 1929
& Office :
CA or
GB or
None
& Applicant type :
COMAPNY+INDIV or
FIRM or
INDIV or
А. Нейфельд or
None
& Number of text pages:
1-2
Use the filters below to narrow your results.
Showing below up to 3 results in range #1 to #3.