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N(.beta.-chloro-propionyl or acryloyl)carbamyl or ureido piperaz

Gas separation: apparatus – Solid sorbent apparatus – With control means responsive to sensed condition
Patent

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Negligible pressure drop absorber

Gas separation: apparatus – Solid sorbent apparatus – Plural solid sorbent beds
Patent

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Nested diffusional filter

Gas separation: apparatus – Solid sorbent apparatus – Plural diverse separating means
Reexamination Certificate

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Nitrogen-selective zeolitic adsorbent for use in air separation

Gas separation: apparatus – Solid sorbent apparatus
Patent

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Nitroso-dimer-containing compositions and photoimaging process

Gas separation: apparatus – Solid sorbent apparatus – With programmed – cyclic – or time responsive control means
Patent

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Noble gas purifier with single purifier vessel and recuperative

Gas separation: apparatus – Solid sorbent apparatus – Plural solid sorbent beds
Patent

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Non-particulating compact adsorbent filter

Gas separation: apparatus – Solid sorbent apparatus – Plural diverse separating means
Patent

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Nonparticulating adsorbent recirculating filter

Gas separation: apparatus – Solid sorbent apparatus – Dispersed or impregnated solid sorbent bed
Patent

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Novel spiro-heterocyclic compounds, their preparation, and use t

Gas separation: apparatus – Solid sorbent apparatus – With control means responsive to sensed condition
Patent

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