Drilldown: Patents
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Patents > Year filed:
1860 - 1869
& Office:
GB
& National tech categories :
FR 6.3 or
USPC 244/153R or
USPC 244/30 or
None
& Family year:
1863
& Cites these patents :
1912 or
Patent DE-1910-236694 or
None
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Showing below up to 1 result in range #1 to #1.