Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 4778442 | Centrifugation A centrifuge system, especially for centrifugation of pathologically dangerous material, is characterized by a centrifuge head adapted to contain a carrier liquid and so formed and shaped that upon rotation of the head about its axis of symmetry the carri... | 10/18/1988 |
| 4705630 | Centrifugation Centrifugation apparatus characterized by a carrier including both a bucket to accommodate a sample chamber and means for supporting a specimen container adjacent to the sample chamber so that material in the specimen container can be pre-centrifuged and ... | 11/10/1987 |
| 4696743 | Centrifugation Centrifugation apparatus comprising a sample chamber, a deposit-receiving surface such as a slide and a filter card having an aperture adapted to define on that surface a deposition area communicating with the sample chamber is characterized by the featur... | 09/29/1987 |
| 4604964 | Tissue processing apparatus A tissue processing apparatus comprises a processing chamber (1), a plurality of reagent containers (5), only one of which is illustrated, and a selector valve (2) for sequentially connecting the processing chamber (1) to each of the said reagent containe... | 08/12/1986 |
| 4391710 | Cytocentrifuge A cytocentrifuge especially suitable for centrifugation of materials requiring handling under conditions of containment is characterized by a plurality of holders each adapted to retain an individual sample chamber in juxtaposition to a receiving surface ... | 07/05/1983 |
| 4263268 | Preparation of porous carbon Porous carbon, suitable for instance for chromatography and as a catalyst support is formed by depositing carbon into the pores of a porous inorganic template such as silica gel, porous glass or a porous oxide, e.g. alumina, and thereafter removing the te... | 04/21/1981 |
| 4099483 | Tissue processing apparatus A processing apparatus for tissue specimens, e.g. for histological examination, comprises a vessel defining a vapor space above heating means and a receptacle for volatile processing liquid and, near the upper end of that space, means for condensing vapor... | 07/11/1978 |
