4. Ships
  5. Building
  6. Canal and ferry boats

Harold A. Gell, Jr.

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Coffee roaster

Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent

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Coffee roaster

Drying and gas or vapor contact with solids – Process – With fluid current conveying or suspension of treated material
Patent

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Interactive value-added telecommunications system and method

Telephonic communications – With usage measurement
Patent

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Method and apparatus for extending the depth range of underwater

Ships – Building – Canal and ferry boats
Patent

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Method and apparatus for inducing reflex blink reactions

Television – Special applications
Patent

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Profile ID: LFUS-PAI-P-268941

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