Drilldown: Patents
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Patents > Inventor country:
GB
& Supplementary to patent
:
Patent DE-1897-112506
or
None
& National tech categories
:
BE K
or
DE 77h
or
USPC 244/3.23
or
USPC 244/45R
& Family year:
1910 - 1919
& Cites these patents
:
Patent GB-1909-3202
or
None
& Number of claims:
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