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"Without question, the greatest invention in the history of mankind is beer. Oh, I grant you that the wheel was also a fine invention, but the wheel does not go nearly as well with pizza."
Dave Barry
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| Number | Title | Issue Date |
| 7213340 | Battery-operated can opener A battery-operated can opener includes a DC motor, a battery, a switching lever that controls electric connection between the battery and the DC motor, an actuating arm coupled to the switching lever for moving a cutter out of the can opening for cutting the lid of ... | 05/08/2007 |
| 7121009 | Can opener The can opener is a side-cutting opener with handle levers which pivot vertically towards and away from one another. A rotary cutter wheel is normally retracted to a position inside one of said handle levers, but is thrust outwardly to cut into the rim of the can wh... | 10/17/2006 |
| 6739061 | Automatic can opener A can opener that automatically opens a can and then signals when the can has been opened, upon the insertion of a can into the can opener and pressing a start button. The automatic can opener is useful for physically challenged individuals and/or individuals who ar... | 05/25/2004 |
| 5682681 | Fiber drum chime removing system A fiber drum chime removing system for disassembling fiber or paperboard drums having metal chimes has a stationary cutting assembly and a movable cutting assembly. The stationary cutting assembly cuts the upper edge of the fiber sidewall of the drum to r... | 11/04/1997 |
| 4251917 | Portable drum opener A portable drum opener tracks around a cover rim of a drum while cutting through an outer lip of the cover rim. It includes a rotatably driven drive wheel for engaging a radially inward facing surface of the cover rim for advancing the opener around the d... | 02/24/1981 |
| 4028805 | Can opener An electric motor-driven can opener having a push button-operated switch to close the energization circuit for the motor is disclosed. The can-opening mechanism includes a cutter blade and can-turning gear combination, a vertically reciprocatable slide me... | 06/14/1977 |
| 3994063 | Power operated can opener with automatic shut off means An electrically powered can opener includes a can cutting element carried on a mounting plate which is pivoted to the can opener frame. An operating lever is connected to the mounting plate for limited pivotal movement beyond which the plate and lever piv... | 11/30/1976 |
