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Patents > Applicant type : 1 or FIRM or INDIV & Tech fields: Airplane & National tech categories : AU 90.3 or DE 77h.5 or USPC 244/3.23

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Inventors:
Ernst Heinkel (9) · Robert Esnault-Pelterie (5) · Anton Flettner (3) · Adolphe-François-Joseph Doutre (2) · Gustav Mees (2) · George Raymond Lawrence (2) · Charles Arthur Wragg (2)
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None (18) · Ernst Heinkel (9) · Robert Esnault-Pelterie (5) · Anton Flettner (3) · Adolphe-François-Joseph Doutre (2) · Gustav Mees (2) · Charles Arthur Wragg (2)
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None (43) · Patent DE-1921-384750 (2) · Patent US-1913-04-21 George Raymond Lawrence (2) · Patent FR-1907-373763 (2)
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