4. Metal working
  5. Means to assemble or disassemble
  6. Puller or pusher means, contained force multiplying operator

Ronald J. Lievens

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Drive support and cover assembly for tubeaxial fan

Pumps – Motor driven – Pump and motor interconnected by endless flexible...
Reexamination Certificate

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Method of constructing an axial flow fan

Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent

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Pressure independent VAV valve with pressure dependent backup

Automatic temperature and humidity regulation – Miscellaneous – Burner controls with automatic cutoff
Patent

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Propeller for tubeaxial fan

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing with axial flow runner
Reexamination Certificate

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Tubeaxial fan assembly

Rotary kinetic fluid motors or pumps – Including shaft transmission train – brake – clutch – or... – Shaft transmission train having flexible means or coupling
Reexamination Certificate

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Profile ID: LFUS-PAI-P-778811

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