4. Horology: time measuring systems or devices
  5. Signalling means
  6. Musical

David J. Fairfield

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Methods and apparatus for implementing a wideband digital...

Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Reexamination Certificate

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Sound supplemented clock system

Horology: time measuring systems or devices – Signalling means – Musical
Patent

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Profile ID: LFUS-PAI-P-572639

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