Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 4712565 | Method and apparatus for evaluating of artificial heart valves A method and apparatus for evaluating of implanted artificial (mechanical or bioprosthetic) heart valves includes a microprocessor responsive to a series of digital signals for processing a portion of the series of digital signals corresponding to valve s... | 12/15/1987 |
| 4528689 | Sound monitoring apparatus Sound monitoring apparatus is described which provides a slowed down version of the original sound, e.g. a heart beat without changing the quality of the sound as perceived by a trained listener such as a physician. The amount by which the sound is slowed... | 07/09/1985 |
