Drilldown: Patents

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Patents > Tech fields: navigation & IPCs : IPC B64B1/58 or IPC B64B1/62 or IPC B64C1/00 or IPC B64C3/18

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None (4) · Paul Lehmann (3) · Edmund Sparmann (2) · Richard Wilcke (2) · Mario Schiavone (2) · Louis Coutant Badeau (2) · Albert Graff (2)
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