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			   I claim the ornamental design for a switch valve, as shown and described.     
    
    
    
    
    
    
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FIG. 1 is an upper perspective view of the switch valve showing my design.
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a side view thereof;
FIG. 5 is an opposite side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
| Patent | Priority | Assignee | Title | 
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| D542888, | Jul 28 2005 | ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENTAL EQUIPMENT CO , LTD | Cut-off valve | 
| D548818, | Jul 28 2005 | ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENTAL EQUIPMENT CO , LTD | Cut-off valve | 
| D605252, | Apr 21 2008 | Switch valve | |
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| D646755, | Mar 18 2011 | Wen Sheng Fli Co., Ltd.; WEN SHENG FLI CO LTD | Switch valve | 
| D670791, | Apr 19 2011 | SB Ingenierie | Clamp | 
| D834150, | Feb 09 2017 | Eastern Foundry & Fittings Inc. | Ball valve | 
| D854660, | Feb 09 2017 | Eastern Foundry & Fittings Inc. | Ball valve | 
| Patent | Priority | Assignee | Title | 
| 234200, | |||
| D412561, | Oct 16 1997 | Bestwill Corporation | One-quarter turn angled ball shutoff valve | 
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| D458665, | Jul 13 2001 | Switch valve | |
| 77028, | 
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