The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.
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| Number | Title | Issue Date |
| D655425 | Retaining wall corner block | 03/06/2012 |
| 7963727 | Retaining wall block and retaining wall comprised of retaining wall blocks A retaining wall block has spaced-apart front and rear sections interconnected by two laterally spaced-apart side sections that jointly define a through-cavity that extends through the block from a top face thereof to a bottom face thereof. Two or more protuberances... | 06/21/2011 |
| 7687005 | Masonry unit manufacturing method A method for forming a masonry unit that includes joining a pallet to a bottom surface of a mold, inserting a filler plug into the side of the mold between a partition plate and a pallet, dispensing mix into the mold, and compressing the mix with a shoe to form a ma... | 03/30/2010 |
| D587382 | Retaining wall block | 02/24/2009 |
| 7185470 | Retaining wall block A block for use in constructing a retaining wall and comprising a body having a central cavity extending vertically there through and defining front, rear, and side walls. The side walls diverge rearwardly from the front of the block to the rear. Stabilizing wings e... | 03/06/2007 |
| 7097389 | Forklift movable cribbing column A prefabricated cribbing column for supporting a mine roof. The column includes a plurality of concrete cribbing elements the majority of which are interleaved with load transfer disks. Two of the cribbing elements are interleaved with a handle element. The column a... | 08/29/2006 |