Drilldown: Patents

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Patents > Year filed: 1909 & Office : AH or GB & Applicant type : INDIV or None & CPCs : CPC B64B1/40 or CPC B64B1/58 or CPC B64C2700/6218 or CPC B64C39/00 & First filing: Yes

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Frederick William Dufwa (3) · Johann Schütte (2) · Rudolf Wagner (2)
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Frederick William Dufwa (3) · Rudolf Wagner (2) · Johann Schütte (2)
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