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The ornamental design for a chair backrest, as shown.
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FIG. 1 is a perspective view of a chair backrest showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
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| D577519, | Oct 18 2007 | Chair backrest | |
| D596430, | Mar 19 2009 | Chair backrest | |
| D596885, | May 05 2009 | Chair backrest | |
| D600477, | May 18 2009 | Chair backrest | |
| D641574, | May 29 2010 | Chair backrest | |
| D660621, | Nov 04 2011 | Chair backrest | |
| D660622, | Jan 05 2012 | Chair backrest | |
| D661136, | Jul 08 2010 | Chair backrest | |
| D661137, | Nov 16 2011 | Chair backrest | |
| D673401, | May 13 2005 | Humanscale Corporation | Chair support structure |
| D772592, | Nov 01 2015 | Chair backrest | |
| D818294, | Mar 07 2016 | Zhongshan Shi Songlin Furniture Co., Ltd.; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD | Chair back frame |
| Patent | Priority | Assignee | Title |
| D453079, | Apr 20 2001 | E CHAIR COMPANY, THE | Arm chair |
| D461322, | Sep 26 2001 | VIRCO MFG CORPORATION | Chair |
| D461348, | Sep 26 2001 | VIRCO MFG CORPORATION | Chair portion |
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| D469284, | Jun 15 2001 | VIRCO MFG CORPORATION | Chair |
| D474346, | Jan 25 2001 | JSJ Furniture Corporation | Chair |
| D485097, | May 24 2001 | HNI TECHNOLOGIES INC | Portion of a chair |
| D486656, | Mar 13 2003 | Chair | |
| D489191, | Sep 27 2002 | Arm chair | |
| D489541, | Dec 02 2002 | Chair | |
| D493627, | Sep 27 2002 | Arm chair | |
| D495509, | Dec 12 2002 | NIGHTINGALE CORP | Chair |
| D510488, | May 19 2004 | Chair | |
| D511418, | Jun 07 2004 | NIGHTINGALE CORP | Chair |
| D514831, | Oct 02 2003 | Zhejiang Himax Furniture Industry Corp., Ltd. | Chair |
| D514832, | Oct 02 2003 | Zhejiang Himax Furniture Industry Corp Ltd. | Chair |
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