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 |
| 4908814 | Method of photothermal information recording reading and erasing A method for photothermal information recording, reading and erasing consists in that the surface of a recording medium (1) is charged prior to the photothermal recording process and then exposed, during photothermal information recording and erasing, to ... | 03/13/1990 |
| 4512007 | Method for producing a record carrier Process for manufacturing a record carrier having a cuttable copper layer, wherein a copper layer is precipitated onto a substrate in an electrochemical bath and a desired Vickers hardness in the precipitated copper layer is obtained by controlling the co... | 04/16/1985 |
| 4484320 | Apparatus and method for cutting information into a metallic record carrier Apparatus for recording an information signal on a metallic record carrier. The information is impressed on the carrier by cutting a groove therein by means of a stylus, the groove being characterized at each point by a slope or modulation pitch angle. Th... | 11/20/1984 |
| 4352973 | Machine for simultaneously turning and laser engraving printing cylinders A laser engraving machine for engraving cylindrical intaglio printing members is arranged to turn the surface of a printing member and engrave it simultaneously. This is not only more efficient but ensures that an accurate relationship is maintained betwe... | 10/05/1982 |
| 4304848 | Method for photographic replication of information on an optical data storage medium A method of replicating data from a master transmissive optical data storage medium whereby the resulting product displays areas of low reflectivity and high reflectivity. Actinic radiation is shone through transmissive areas onto a silver-halide emulsion... | 12/08/1981 |
| 4118037 | Record player A record player comprising a container, a cover attached to said container, a turntable rotatably mounted on said cover, a record on said turntable and having a relatively deep groove at the end of its playing side, an electric motor in said container for... | 10/03/1978 |
| 4105213 | Device for cutting a sound groove on a disc recording medium A stylus for cutting a sound groove on a disc recording medium comprises a diamond body having a groove cutting part, for producing a chip cut from the disc recording medium. The stylus also includes a structure made of a material which does not readily g... | 08/08/1978 |
