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Patents > Year filed: 1912 & First filing: None & Number of diagram pages: 1-2

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Louis Constantin (5) · None (4) · Hanns Pippart (3) · Jan Jaakson (3) · Heinrich Noll (3) · Louis-Marie Le Dantec (2) · Auguste-Blaise Baron (2) · Karl Klinkosch (2) · Adalbert Plaček (2) · Heinrich Bruns, Jr. (2) · Emil Hyra (2) · Melvin Vaniman (2) · Gaston Rose (2)
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HU V/h (12) · None (10) · AT 77d (7) · FR 6.4 (5) · CH 129b (4) · DE 77h.9 (3) · AU 90.3 (3) · DK 65 (2) · CH 129c (2)
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