Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B64
AIRCRAFT; AVIATION; COSMONAUTICS
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B64C
AEROPLANES; HELICOPTERS
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B64C25/32
characterised by elements which contact the ground or similar surface
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B64C25/42
Arrangement or adaptation of brakes
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B64C25/426
Braking devices providing an automatic sequence of braking
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