Drilldown: Patents
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Patents > Year granted:
1910 - 1919
& Office:
US
& Filing date:
1912
& National tech categories :
BE K or
USPC 244/22 or
USPC 244/45R
& CPCs :
CPC B64C2700/6212 or
CPC B64C2700/6295 or
CPC B64C35/00
& Number of claims:
11
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Showing below up to 1 result in range #1 to #1.