Drilldown: Patents
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Patents > Year filed:
1900 - 1909
& Inventor country:
DE
& IPCs :
IPC B64C23/00 or
IPC B64C3/54
& Cites these patents :
Patent US-1903-821393 or
None
& Citations from after 1930:
None
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Showing below up to 6 results in range #1 to #6.