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Patents > Year granted: 1897 & IPCs: None

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None (10) · Edward Joel Pennington (6) · Hébert (2) · E. J. Delaurier (2) · Peter Irgens Bagge (2) · Gustav Fricke (2) · Rudolf Diesel (2) · Gustav Lilienthal (2) · August Riedinger (2)
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None (55) · Gustav Fricke (2)
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Showing below up to 89 results in range #1 to #89.

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