Drilldown: Patents
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Choose a table:
- Airplane (18)
- Airship (15)
- Companies (475)
- Event (141)
- Letters (683)
- Organizations (964)
- Patents (17538)
- Person (2108)
- Publications (24558)
- Techtypes (2373)
Patents > Assigned to:
None
& National tech categories:
USPC 244/48
& CPCs :
CPC B64C17/00 or
CPC B64C2700/6218 or
CPC B64C3/385 or
CPC B64C35/00
& Citations from after 1930:
None
& Number of figures:
2-4
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.