Drilldown: Patents
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Patents > Year filed:
1907
& National tech categories :
FR 6.2 or
IT 8 or
USPC 244/45R or
USPC 244/80
& CPCs:
CPC B63H1/26
& Cites these patents :
1910 or
None
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Showing below up to 1 result in range #1 to #1.