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Patents > Tech fields : Pendulum or propeller & Number of text pages: 1

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None (7) · Christian Lorenzen (3) · Richard Czygan (2) · Lucien Chauvière (2) · Paul Frederik Degn (2) · Rudolf Krocker (2) · Ugo Antoni (2) · Guido Antoni (2) · Jakob Haw (2)
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None (28) · Paul Frederik Degn (2) · Lucien Chauvière (2) · Guido Antoni (2) · Ugo Antoni (2) · Rudolf Krocker (2) · Richard Czygan (2)
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