4. Liquid purification or separation
  5. Structural installation
  6. Geographic

William E. Spindler

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Audio speaker with harmonic enclosure

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
Reexamination Certificate

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Cleaning compound for cleaning surfaces in a food processing...

Cleaning and liquid contact with solids – Processes – Work handled in bulk or groups
Reexamination Certificate

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Cleaning compound for cleaning surfaces in a food processing...

Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Liquid composition
Reexamination Certificate

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Method of removing a water insoluble surface coating from a surf

Check-actuated control mechanisms – Including noncontacting – relatively movable parts connected...
Patent

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Water aeration system

Liquid purification or separation – Structural installation – Geographic
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Profile ID: LFUS-PAI-P-1636128

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