Drilldown: Patents

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Patents > Applicant firm: None & National tech categories : DE 77h or HU V/h

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None (252) · Patent US-1903-821393 (2) · Patent BE-1913-07-12 Joseph de Pierpont de Burnot (2) · Patent FR-1909-403985 (2) · Patent AT-1911-57225 (2) · Patent FR-1900-304673 (2)
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