4. Medical and laboratory equipment
  5. Prophylactic article
  6. Ear plug or nose clip

W. Barry Krause

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Ear plug

Medical and laboratory equipment – Prophylactic article – Ear plug or nose clip
Patent

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Rotary multi-contact switch

Electricity: circuit makers and breakers – Multiple circuit control – Pivoted contact
Patent

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Switch

Equipment for production – distribution – or transformation of ene – Distribution – modification or control – Switch or casing therefor
Patent

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Switch

Equipment for production – distribution – or transformation of ene – Distribution – modification or control – Switch or casing therefor
Patent

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Water-resistant switch construction

Electricity: circuit makers and breakers – Electric switch details – Cases and bases
Patent

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Profile ID: LFUS-PAI-P-1256523

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