4. Boots, shoes, and leggings

Kazutaka Watanabe

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Data communication system using photocouplers

Telegraphy – Systems – Chemical
Patent

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Optical disk device and an information reading method applied th

Dynamic information storage or retrieval – With particular cabinet structure – Slotted for edgewise insertion of storage disc
Patent

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Pen type electronic digital calculator

Boots – shoes – and leggings
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Portable electronic calculator with a writing instrument

Boots – shoes – and leggings
Patent

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Redundancy system for data communication

Communications: electrical – Digital comparator systems
Patent

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Profile ID: LFUS-PAI-P-491215

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