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Lanced fire-rated runner
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Patent number 5,349,803
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Issue date Sep 27, 1994
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Armstrong World Industries, Inc.
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Ernest B. Nute
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E04 - BUILDING
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Prenotched fire-rated runner
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Patent number 5,347,783
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Issue date Sep 20, 1994
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Armstrong World Industries, Inc.
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Sandor A. Frecska
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E04 - BUILDING
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Ceiling runner
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Patent number 4,068,438
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Issue date Jan 17, 1978
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Armstrong Cork Company
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Ernest B. Nute
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E04 - BUILDING
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