Drilldown: Patents
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Patents > Year granted:
1920 - 1929
& Supplementary to patent:
Patent IT-1916-08-29 Castagneris
& CPCs :
CPC B64C17/00 or
CPC B64C2700/6295
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.