Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7420341 | Power tool and motor controller A method and apparatus to automatically reverse the motor of a power tool, such as a dispensing gun or similar tool. In some constructions, a controller automatically reverses the direction of plunger movement and removes the plunger from contact with the back wall ... | 09/02/2008 |
| 5589145 | Waste treatment material dispensing canister A body waste fluids collecting container is used in the disposal of waste fluids drained from a body cavity of a patient. The collecting container has inlet and outlet ports, a collecting compartment for collecting body waste fluids drained from a patient... | 12/31/1996 |
| 4720321 | Method and apparatus for manufacturing packaging pads Packaging pads comprise top and bottom sheets laminated together along peripheral surface portions with a pocket of comminuted filler material centrally disposed between the sheets. Apparatus for manufacturing the pads continuously feeds an endless bottom... | 01/19/1988 |
