Drilldown: Patents

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Patents > Supplementary to patent: None & National tech categories : DE 77 or FR 5

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Applicant person:
None (152) · Ernst Georg August Baumgarten (3) · F. Gaebert (2) · Federico Capone (2) · Raphael Ernst May (2) · Carl Friedrich Billwiller (2) · Carl Georg Rodeck (2) · Jean-Louis Le Hir (2) · Otto Schmidt (2) · Georg Fischer (2)
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Tech fields:
LTA (110) · balloon (63) · navigation (61) · propulsion (45) · None (20) · airship (18) · propeller (17) · car (16) · frame (16) · control (11) · Aerostat (11) · dirigible (10) · captive (9) · ornithopter (8) · hybrid (8) · kite (8) · stability (8)
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Citations from after 1930:
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