Drilldown: Patents
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- Patents (17619)
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- Publications (24571)
- Techtypes (2388)
Patents > Office :
GR or
US
& Supplementary to patent :
Patent BE-1909-214032 or
None
& National tech categories :
AT 77d or
FR 6.4
& IPCs :
IPC B64C33/00 or
IPC B64C39/00
& CPCs :
CPC B64C3/10 or
None
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