Drilldown: Patents
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Patents > Year filed:
1911
& Inventor country :
GB or
RO
& Assigned to :
Varioplane Company or
Western Electric Company or
None
& National tech categories :
FR 6.4 or
GB 4 without buoyant
& CPCs:
CPC B64C2700/6295
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.