Drilldown: Patents
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Patents > Year granted:
1860
& Inventor country:
US
& Application number :
flapping or
None
& National tech categories:
USPC 244/3.23
& Cites these patents :
1 or
USPC 244/87 or
None
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.