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Patents > Inventor country: CH & Citations from after 1930: None & Number of text pages: 3-11

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Tech fields:
airplane (16) · frame (15) · design (13) · subsystem (11) · LTA (10) · navigation (10) · propulsion (8) · stability (8) · propeller (7) · None (7) · balloon (7) · construction (7) · elasticity (6) · cables (6) · control (5) · HTA (5) · rudder (4) · steering (4) · propellers (4) · dirigible (3)
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None (21) · CPC B64C17/00 (5) · CPC B64C23/005 (3) · CPC B64C3/385 (2) · CPC B64D27/00 (2) · CPC B64C2700/6212 (2) · CPC B64C13/02 (2) · CPC B61C9/22 (2)
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