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Patents > Inventor country: CH & Number of text pages: 3-12 & Number of diagram pages: 1-3

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Tech fields:
airplane (17) · frame (15) · design (13) · subsystem (12) · LTA (11) · propulsion (11) · navigation (10) · None (10) · stability (9) · construction (8) · propeller (8) · balloon (7) · cables (6) · steering (6) · control (6) · elasticity (6) · HTA (5) · propellers (5) · rudder (4)
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CPCs:
None (25) · CPC B64C17/00 (9) · CPC B64C2700/6212 (5) · CPC B64C3/385 (4) · CPC B64C23/005 (3) · CPC B64C11/006 (3) · CPC B64C3/40 (2) · CPC B64C13/02 (2) · CPC B64C2700/6214 (2)
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