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Flush relief valve having floatable sleeve member

Fluid handling – Processes
Reexamination Certificate

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Flush relief valve having improved vacuum breaker

Fluid handling – Processes
Reexamination Certificate

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Flush valve

Fluid handling – Processes
Patent

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Flush valve with rotatable grate

Fluid handling – Processes – Cleaning – repairing – or assembling
Reexamination Certificate

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Flushing attachment for hydrant

Fluid handling – Processes – Cleaning – repairing – or assembling
Reexamination Certificate

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Flux density control system

Fluid handling – Processes – With control of flow by a condition or characteristic of a...
Patent

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Foam inductor system and method of using same

Fluid handling – Processes – With control of flow by a condition or characteristic of a...
Patent

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Folding leaf valve and method of making

Fluid handling – Processes – Cleaning – repairing – or assembling
Patent

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Fragmented polymers as friction reducers in pipeline transportat

Fluid handling – Processes – Affecting flow by the addition of material or energy
Patent

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Framed wall with a prefabricated underfloor drain line and metho

Fluid handling – Processes – Cleaning – repairing – or assembling
Patent

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Frangible connectors

Fluid handling – Processes
Patent

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Frangible connectors

Fluid handling – Processes
Patent

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Freeing of seized valves

Fluid handling – Processes – Cleaning – repairing – or assembling
Reexamination Certificate

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Freeze safe valve

Fluid handling – Processes – Cleaning – repairing – or assembling
Patent

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Freeze valve

Fluid handling – Processes – Affecting flow by the addition of material or energy
Reexamination Certificate

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Freeze valve and treatment enclosure controlled by at least one

Fluid handling – Processes – Affecting flow by the addition of material or energy
Patent

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Freeze-proof hydrant

Fluid handling – Processes – Cleaning – repairing – or assembling
Patent

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Freeze-resistant plumbing system in combination with a...

Fluid handling – Processes – With control of flow by a condition or characteristic of a...
Reexamination Certificate

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Freeze-thaw method for temporarily plugging process flowline

Fluid handling – Processes – Affecting flow by the addition of material or energy
Patent

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Freezeless ground hydrant and method for operating same

Fluid handling – Processes
Patent

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