Drilldown: Patents
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Patents > Full specification filed date:
1910
& National tech categories :
DE 77h.5 or
USPC 244/153R or
USPC 244/22 or
None
& IPCs :
IPC B64C3/18 or
IPC B64C39/00
& CPCs :
CPC B64C39/005 or
CPC B64C39/008
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.