Drilldown: Patents
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Choose a table:
- Airplane (18)
- Airship (15)
- Companies (475)
- Event (141)
- Letters (683)
- Organizations (964)
- Patents (17547)
- Person (2112)
- Publications (24562)
- Techtypes (2373)
Patents > Office :
?? or
DE or
NL or
NO or
UN
& Related to aircraft :
-1 or
Yes
& CPCs :
CPC B64C2700/6256 or
CPC E21D15/38
& Family year:
1870 - 1879
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.