4. Electric lamp and discharge devices: systems
  5. Cathode ray tube circuits
  6. Plural ray-type tube

Douglas L. Tschida

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Above-grade storage vault

Receptacles – Sectional – Tank for fluids
Patent

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Adaptor for external oil filter

Liquid purification or separation – Structural installation – Closed circulating system
Patent

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Adjustable backrest

Furnishings – Furniture – freestanding support – or frame therefor – Element
Patent

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Adjustable mop

Washing – cleaning – or drying machine – Laundering – cleaning – or drying tools or implements – Scraper – duster – mop – or sponge
Patent

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Air register filter/cover

Gas separation – With separated gas outflow control – Baffle or flow guide
Patent

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Profile ID: LFUS-PAI-P-31767

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