4. Communications: electrical
  5. Digital comparator systems

Willem Frederik Druyvesteyn

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Device for the magnetic recording by means of a magnetic strip d

Dynamic magnetic information storage or retrieval – Head
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Magnetic device for producing domains

Communications: electrical – Digital comparator systems
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Magnetic device having domains of two different sizes in a singl

Communications: electrical – Digital comparator systems
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Magnetic domain logic device

Electrical transmission or interconnection systems – Anti-induction or coupling to other systems
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Memory device

Communications: electrical – Digital comparator systems
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Profile ID: LFUS-PAI-P-299274

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