Drilldown: Patents
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Choose a table:
- Airplane (18)
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- Letters (683)
- Organizations (965)
- Patents (17515)
- Person (2105)
- Publications (24555)
- Techtypes (2370)
Patents > Year granted:
1900 - 1909
& Office:
US
& National tech categories:
USPC 254/318
& Citations from after 1930:
5-6
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.