4. Rotary expansible chamber devices
  5. Intermittently accelerated and receding members rotate in...
  6. Each a working member

Boris S. Tverskoy

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Answering machine for transmitting messages to remotely...

Telephonic communications – Audio message storage – retrieval – or synthesis – Multimedia system
Reexamination Certificate

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Rotary device

Rotary expansible chamber devices – Intermittently accelerated and receding members rotate in... – Each a working member
Patent

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Profile ID: LFUS-PAI-P-690511

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