Drilldown: Patents
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Patents > Year granted:
1880
& Office :
CA or
CL or
DE or
IN
& National tech categories :
FR 5 or
USPC 244/45R or
None
& Family year:
1870 - 1879
& Cites these patents:
None
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Showing below up to 1 result in range #1 to #1.