4. Telephonic communications
  5. Terminal
  6. Having loudspeaking conversation capability

Stephen P. Rittmueller

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Central vacuum cleaner muffler

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent

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Central vacuum with acoustical damping

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent

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Low-profile speakerphone with downward oriented microphone confi

Telephonic communications – Terminal – Having loudspeaking conversation capability
Patent

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Profile ID: LFUS-PAI-P-797236

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