4. Gas separation
  5. Combined or convertible
  6. Involving ash tray

George B. Davis

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Air purifying apparatus

Gas separation – Combined or convertible – In environmental air enclosure
Patent

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Christmas tree lighting control

Electrical transmission or interconnection systems – Plural load circuit systems
Patent

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Compact blower and filter assemblies for use in clean air enviro

Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent

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Dual core air-to-air heat exchanger

Heat exchange – Structural installation – Related to wall – floor or ceiling structure of a chamber
Patent

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Electrically heated mold for making test specimens of concrete

Measuring and testing – Miscellaneous
Patent

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Profile ID: LFUS-PAI-P-430029

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