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Patents > Tech fields : Balloon or Hull & Number of figures: 1-2

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Office:
Inventors:
None (9) · Ralph Hazlett Upson (3) · Joseph Allison Steinmetz (3) · August Riedinger (3) · Johann Schütte (2) · Adrien Baudin (2) · Johannes Schilling (2) · Theodor Scheimpflug (2) · Daniel-Alexis-Léopold Grosclaude (2)
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Applicant person:
None (36) · Joseph Allison Steinmetz (3) · Adrien Baudin (2) · Daniel-Alexis-Léopold Grosclaude (2) · Johann Schütte (2)
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None (52)
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Related to aircraft:
National tech categories:
None (15) · FR 6.4 (11) · DE 77 (10) · FR 6.3 (5) · USPC 244/97 (5) · USPC 244/31 (4) · DE 77h (3) · DE 77h.4 (3) · USPC 244/30 (2) · USPC 244/33 (2) · USPC 244/26 (2) · DE 77h.2 (2) · USPC 244/127 (2) · AT 77d (2)
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Citations from after 1930:
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