4. Optical: systems and elements
  5. Signal reflector
  6. 3-corner retroreflective

Michael Hanrahan

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Bonded polymer filter medium and its use

Liquid purification or separation – Filter – Material
Patent

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Local routing system and method

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
Reexamination Certificate

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Local routing system and method

Telephonic communications – With usage measurement – Call charge metering or monitoring
Reexamination Certificate

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Local routing system and method

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
Reexamination Certificate

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Local routing system and method

Telephonic communications – With usage measurement – Call charge metering or monitoring
Reexamination Certificate

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Profile ID: LFUS-PAI-P-314623

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