4. Brakes
  5. Internal-resistance motion retarder
  6. Magnetic fluid or material

Nicholas Penney

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Torsional magnetorheological device

Brakes – Internal-resistance motion retarder – Magnetic fluid or material
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Variable area nozzle including a plurality of convexly vanes...

Power plants – Reaction motor – Particular exhaust nozzle feature
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3159252

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