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 |
| 4960778 | Benzoxazolinone compounds Compounds of the general formula (I): ##STR1## in which: X denotes a hydrogen atom, Y denotes a hydrogen atom or a hydroxyl group or alternatively X and Y together denote an oxygen atom, T denotes a hydrogen atom or a lower alkyl group, Z denotes a hydrog... | 10/02/1990 |
| 4902817 | Process for the synthesis of alpha n alkylated amino acids and esters thereof, application to the synthesis of carboxyalkyl dipeptides Stereoselective process for the industrial synthesis of compounds of formula (I): ##STR1## where R1 is linear or branched lower alkyl with 1 to 6 carbon atoms, R2 is a linear or branched lower alkyl with 1 to 4 carbon atoms, employin... | 02/20/1990 |
| 4885299 | 2-(2,3-dihydro-2-oxo-3-benzofuranyl)acetic acids antihypoxic and nootropic effects having The invention relates to new 2-(2,3-dihydro-2-oxo-3-benzofuranyl)acetic acid compounds of general formula I: ##STR1## in which: R1 denotes a hydrogen atom, a linear or branched alkyl radical having 1 to 4 carbon atoms or a phenyl radical o... | 12/05/1989 |
| 4885373 | 2,4,5,6,7,8-Hexahydronaphtho[2,3-b]furan useful as an intermediate Compounds of general formula I, ##STR1## in which: R1 denotes a hydrogen atom or, with the proviso, however, that the amino radical is at the 7-position, a linear or branched alkyl radical containing 1 to 4 carbon atoms, R2 deno... | 12/05/1989 |
| 4870091 | 1,4-dihydropyridine compounds Compounds of general formula I: ##STR1## in which: Ar represents a phenyl radical optionally containing one to five identical or different substituents, representing a halogen atom, an alkoxy radical containing 1 to 4 carbon atoms, an alkylthio radic... | 09/26/1989 |
| 4863951 | Pharmacologically active amino-5,6,7,8-tetrahydronaphtho [2,3-B] furan compounds Compounds of general formula I, ##STR1## in which: R1 denotes a hydrogen atom or, with the proviso, however, that the amino radical is at the 7-position, a linear or branched alkyl radical containing 1 to 4 carbon atoms, R2 deno... | 09/05/1989 |
| 4859700 | 2-(2,3-dihydro-2-oxo-3-benzofuranyl)acetic acid compounds having antihypoxic and nootropic effects The invention relates to new 2-(2,3-dihydro-2-oxo-3-benzofuranyl)acetic acid compounds of general formula I: ##STR1## in which: R1 denotes a hydrogen atom, a linear or branched alkyl radical having 1 to 4 carbon atoms or a phenyl radical o... | 08/22/1989 |
| 4820707 | 2,6-piperazinedione compounds The invention relates to 2,6-piperazinedione derivatives of general formula I ##STR1## in which: A and B each denote a methylene radical or a carbonyl radical with the proviso, however, that A and B never simultaneously denote the same radical, ... | 04/11/1989 |
| 4765987 | Artificial surfactants, pharmaceutical compositions containing them and use thereof New artificial surfactants composed of dipalmitoylphosphatidylcholine, distearoylphosphatidylcholine and soya lecithin and pharmaceutical compositions containing them, which can be used to replace deficient endogenous pulmonary surfactant.... | 08/23/1988 |
