Drilldown: Patents
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- Publications (24571)
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Patents > Office :
GB or
LU
& Supplementary to patent :
Patent FR-1910-423792 or
Patent FR-1911-430455 or
Patent NO-1915-12-15 Carl Alfred Johansson
& Related to aircraft :
1 or
navigation
& CPCs :
CPC B64C33/02 or
None
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