4. Dynamic magnetic information storage or retrieval
  5. Record transport with head stationary during transducing
  6. Drum record

David S. Dunn

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Door spring adjusting tool

Tools – For adjusting variable positioned parts
Patent

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Spindle drive system

Electricity: motive power systems – Reciprocating or oscillating motor – Energizing winding circuit control
Patent

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Transducer positioning apparatus

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Vibration damper for a transducer carriage drive mechanism for u

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
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Profile ID: LFUS-PAI-P-790649

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