| 摘要 |
The design consists of the features of shape, ornament, pattern and configuration of a DEVICE FOR PREVENTING SEWER BACKFLOW shown in the drawings. The broken lines do not form part of the design.Figure 1 shows a perspective front, top and right side view of a DEVICE FOR PREVENTING SEWER BACKFLOW;Figure 2 shows a perspective front, bottom and right side view of the DEVICE FOR PREVENTING SEWER BACKFLOW of Figure 1;Figure 3 shows a top plan view of the DEVICE FOR PREVENTING SEWER BACKFLOW of Figure 1;Figure 4 shows a bottom plan view of the DEVICE FOR PREVENTING SEWER BACKFLOW of Figure 1;Figure 5 shows a right side elevational view of the DEVICE FOR PREVENTING SEWER BACKFLOW of Figure 1;Figure 6 shows a front elevational view of the DEVICE FOR PREVENTING SEWER BACKFLOW of Figure 1;Figure 7 shows a left side elevational view of the DEVICE FOR PREVENTING SEWER BACKFLOW of Figure 1; andFigure 8 shows a rear elevational view of the DEVICE FOR PREVENTING SEWER BACKFLOW of Figure 1.Drawings of the design are included. |
