发明名称 |
RETAINING WALL BLOCK |
摘要 |
A retaining wall block having a rear flange and a mold box and method of making the block. The mold box is configured with a mold cavity that includes a vertical flange forming cavity extending from the top of the mold box to the bottom of the mold box.
|
申请公布号 |
US2009103987(A1) |
申请公布日期 |
2009.04.23 |
申请号 |
US20080252837 |
申请日期 |
2008.10.16 |
申请人 |
KEYSTONE RETAINING WALL SYSTEMS, INC. |
发明人 |
MACDONALD ROBERT A. |
分类号 |
E02D29/02;B28B3/00;E04C1/00 |
主分类号 |
E02D29/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|