4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Heavy metal containing

Tadashi Ishii

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Audio and visual alarm device

Communications: electrical – Systems – Plural
Patent

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Ceramic circuit board and method of manufacturing the same

Stock material or miscellaneous articles – Composite – Of metal
Reexamination Certificate

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Double gong bell

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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Electrically operated bell

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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Gong striking mechanism

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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Profile ID: LFUS-PAI-P-548732

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