Drilldown: Patents
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Patents > Office :
?? or
AT or
CL or
GB or
HU or
LU or
RU
& Publication date:
1914
& National tech categories:
None
& IPCs :
IPC B64C11/20 or
IPC B64C25/00
& Number of figures:
4-6
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Showing below up to 1 result in range #1 to #1.