4. Communications: radio wave antennas
  5. Antennas
  6. Balanced doublet - centerfed

Robert D. Freeman

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14 mm extension spark plug

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...
Reexamination Certificate

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Apparatus for coupling record disk to disk drive

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent

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Continuous flexible connection method for miniature optical...

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate

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Data cartridge load/unload mechanism for disk drive

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Reexamination Certificate

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Disk drive head lift mechanism

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent

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Profile ID: LFUS-PAI-P-792914

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