The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.
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| Number | Title | Issue Date |
| 7271237 | Method of drying a material having a cohesive phase A method for drying a material such as a polymer hydrogel which passes through a cohesive phase as it dries is disclosed. The method comprises agitating a composition while removing liquid until the solids content of the composition reaches a level at which the comp... | 09/18/2007 |
| 6183123 | Fiber additive concrete manufacturing method A method of manufacturing concrete with a fiber additive and other ingredients including the steps of mechanically manipulating a shipping container (36) having a gross amount of fiber additive (50) substantially greater than the an amount susceptible to ... | 02/06/2001 |
| 5261739 | Multifunction construction machine Multifunction building machine used in civil construction sites and public works. The machine combines on a self-propelled frame, a concrete-mixer (20) with a set of tools on one side, comprising a loading power shovel (60), a grader (70) and a digging sh... | 11/16/1993 |
| 4339204 | Apparatus for use in the production of concrete Apparatus for metering and feeding aggregate materials for the production of concrete is constructed so as to be transportable as a unit. To this end, the frame of the apparatus is in two parts which are pivotally connected with one another, the one, fixe... | 07/13/1982 |
| 4268175 | Tractor mounted self-loading concrete mixing apparatus Tractor mounted mixing apparatus is disclosed including a mounting frame attachable to a three-point tractor hitch, a mixing drum rotatably mounted to the frame and having mechanism for rotatably driving the drum, and a scoop pivotally connected to the su... | 05/19/1981 |
| 4191478 | Mixing apparatus for concrete or other bulk material A mixing apparatus, e.g. for making concrete, has a triangular base supporting a rotatable or nonrotatable, upwardly open cylindrical drum as well as a main shaft carrying a large sprocket wheel which is linked by a chain with a smaller sprocket wheel on ... | 03/04/1980 |
| 4103352 | Transporter and loading box for concrete mixer A transporting trailer or transporter is provided with a mixing or batch box and a support ramp for supporting a portable mixer. The batch box is stored and carried with the transporter as it is carrying the portable mixer to a construction site. At the s... | 07/25/1978 |