IPIQ

B

PERFORMING OPERATIONS; TRANSPORTING

B64

AIRCRAFT; AVIATION; COSMONAUTICS

B64C

AEROPLANES; HELICOPTERS

25/00

Alighting gear

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B64C25/02

Undercarriages

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B64C25/08

non-fixed, e.g. jettisonable

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B64C25/10

retractable, foldable, or the like

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B64C25/12

sideways

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