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Lift door panel
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Patent number 6,381,917
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Issue date May 7, 2002
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Inventio AG
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Frank Thielow
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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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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Fire-rated runner
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Patent number 5,313,750
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Issue date May 24, 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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Fire strip construction
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Patent number 4,916,877
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Issue date Apr 17, 1990
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National Rolling Mills, Inc.
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William J. Platt
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E04 - BUILDING
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Drywall furring system
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Patent number 4,866,900
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Issue date Sep 19, 1989
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Chicago Metallic Corporation
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James J. Dunn
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E04 - BUILDING
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Fire strip
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Patent number 4,864,791
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Issue date Sep 12, 1989
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National Rolling Mills, Inc.
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William J. Platt
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E04 - BUILDING
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Fire-rated main runner
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Patent number 4,785,595
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Issue date Nov 22, 1988
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Chicago Metallic Corporation
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James J. Dunn
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E04 - BUILDING
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Suspended ceiling system
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Patent number 4,601,153
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Issue date Jul 22, 1986
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Chicago Metallic Corporation
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James J. Dunn
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E04 - BUILDING
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Suspended ceiling system
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Patent number 4,525,973
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Issue date Jul 2, 1985
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Chicago Metallic Corporation
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Ronald W. Vukmanic
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E04 - BUILDING
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Fire rated ceiling
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Patent number 4,257,206
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Issue date Mar 24, 1981
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Donn Incorporated
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David F. Mieyal
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E04 - BUILDING
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Passive fire protection system
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Patent number 4,220,685
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Issue date Sep 2, 1980
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Grumman Aerospace Corporation
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Edward G. Markow
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B60 - VEHICLES IN GENERAL
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Suspended ceiling system
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Patent number 4,208,851
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Issue date Jun 24, 1980
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Roblin Industries, Inc.
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Gale E. Sauer
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E04 - BUILDING
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Object supports
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Patent number 4,119,302
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Issue date Oct 10, 1978
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Philip A. Moroco
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E04 - BUILDING
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-
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Fire rated grid
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Patent number 3,965,632
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Issue date Jun 29, 1976
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Questor Corporation
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Donald L. Rousey
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E04 - BUILDING
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3846031
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Patent number 3,846,031
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Issue date Nov 5, 1974
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E04 - BUILDING
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3807111
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Patent number 3,807,111
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Issue date Apr 30, 1974
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E04 - BUILDING
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3789566
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Patent number 3,789,566
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Issue date Feb 5, 1974
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E04 - BUILDING