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Patents > Filing date: 1917 & Number of text pages: 5-6

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construction (6) · None (6) · stability (5) · frame (4) · airplane (4) · control (4) · propellers (3) · LTA (3) · airship (3) · subsystem (3) · structure (3) · spars (2) · fuselage (2) · design (2) · military (2) · strut (2) · blades (2) · pneumatics (2)
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CPC B64C3/185 (4) · None (2) · CPC B64C1/065 (2) · CPC B64C33/02 (2) · CPC B64C25/60 (2) · CPC B64C17/00 (2) · CPC B64C13/12 (2) · CPC B64C3/18 (2) · CPC B64B1/00 (2)
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