Drilldown: Patents

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Patents > Year filed: 1906 & National tech categories : CH 129b or FR 6.4

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Désiré Sival (2) · Joseph Deixler (2) · Paul Cornu (2) · Jules Collomb (2) · Jules Cornu (2)
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None (2) · Joseph Deixler (2) · Jules Collomb (2) · Paul Cornu (2) · Jules Cornu (2) · Désiré Sival (2)
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