4. Excavating

Steven M. Silverstein

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Feedback control of call processing in a communication...

Telephonic communications – Centralized switching system – Call distribution to operator
Reexamination Certificate

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Filter bag

Liquid purification or separation – Structural installation – Closed circulating system
Reexamination Certificate

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Interface testing of software systems

Excavating
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Lighting assembly and lamp aiming device

Illumination – With static structure – Wall or ceiling
Reexamination Certificate

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Wall-wash lighting

Illumination – Housing – Recessed
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1406509

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