4. Photography and optical equipment
  5. Projector or viewer
  6. With provision for transparency magazine

Gary Bartholomew

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Method for preventing call congestion on outgoing trunks of a lo

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
Patent

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Photographic illuminating and comparing device

Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent

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Profile ID: LFUS-PAI-P-1064519

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