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 |
| 6152622 | Process chart recorder with dot printing head A process chart recorder for the on-line recording of process measurement data that has a dot-printing head. In order to develop a chart recorder arrangement having a dot-printing head of the generic type to the extent that the overall printing operation ... | 11/28/2000 |
| 4761658 | Method and apparatus for measuring experimental quantities using an ink jet impactless timing device A method and apparatus for measuring experimental quantities utilizes a self-contained ink jet impactless timing device including an ink jet head employing a timing circuit to provide a precisely timed ink dot stream. In utilizing the present invention, r... | 08/02/1988 |
