Drilldown: Patents

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Patents > National tech categories : DE 77h or DE 77h.12 & CPCs: None

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None (3) · Caspar Braun (3) · August Euler (2) · Firmin Bousson (2) · August Riedinger (2) · Heinrich Suter (2) · Andreas Ożegowski (2)
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Showing below up to 54 results in range #1 to #54.

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