Drilldown: Patents
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Choose a table:
- Airplane (18)
- Airship (15)
- Companies (480)
- Event (141)
- Letters (683)
- Organizations (965)
- Patents (17611)
- Person (2129)
- Publications (24568)
- Techtypes (2379)
Patents > Year filed:
1860 - 1869
& Applicant type
:
Hermann Burkardt
or
INDIV
& Supplementary to patent
:
Patent AT-1911-57225
or
Patent GB-1908-4519
or
None
& CPCs
:
CPC B64B1/40
or
CPC B64C2700/6212
& Citations from after 1930:
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Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.