Drilldown: Patents
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Patents > Office :
FI or
GB
& Filing date:
December 1909
& Grant date:
1911
& Supplementary to patent :
Patent FR-1909-420322 or
Patent FR-1916-502839 or
None
& Assigned to :
Western Electric Company or
None
& IPCs :
IPC B64C3/18 or
IPC B64C39/00
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Showing below up to 1 result in range #1 to #1.