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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 5714711 | Encapsulated propellant grain composition, method of preparation, article fabricated therefrom and method of fabrication A propellant grain composition for use in solid fuel rocket engines comprises a first reactant component consisting of an oxidizer. A polymeric barrier coating encapsulates the first reactant component and a second reactant component comprising a reducer ... | 02/03/1998 |
| 5471937 | System and method for the treatment of hazardous waste material A method for the destruction of contaminated waste material comprising the steps of sufficiently heating the waste material in an oxygen deficient atmosphere to pyrolyze the material thereby producing a volatile fuel gas stream and a decontaminated solid ... | 12/05/1995 |
| 5218166 | Modified nitrocellulose based propellant composition The present invention relates to modified propellant compositions of either single or multiple based type which are obtained by resolvating a conventional, previously solvated nitrocellulose-based granular propellant with a solvent such as methyl ethyl ke... | 06/08/1993 |
