Drilldown: Patents
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Patents > Office :
?? or
BE or
DE or
HU
& Inventor country:
DE
& Publication date:
1920
& Assigned to:
None
& National tech categories:
DE 77h.15
& IPCs :
IPC B64B1/58 or
None
& Number of diagram pages:
1
& Number of figures:
1-2
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.