Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 4517350 | Process for removing polymer scale adhering to a polymerization vessel A method for removing polymer scales adhering to the inner surface of a polymerization vessel, which comprises polymerizing vinyl chloride monomer in an aqueous medium, discharging the resulting vinyl chloride polymer together with the aqueous medium from... | 05/14/1985 |
| 4465615 | Electroconductive resin composition and a videodisc record An electroconductive resin composition is a blend of 5-30% by weight carbon black and a graft-polymer. The graft-polymer is obtained by graft polymerizing 99-76 parts by weight of monomeric vinyl chloride to 1-15 parts by weight of an ethylenevinyl acetat... | 08/14/1984 |
| 4404337 | Process for inhibiting the formation of scale in the suspension polymerization of vinyl chloride The formation of scale on the inner surfaces of a vessel used for suspension polymerizing vinyl chloride is inhibited by applying a ternary reaction product of furfural, a polyamine and a phenol to said inner surfaces or by adding the ternary product to t... | 09/13/1983 |
| 4396660 | Electroconductive resin composition and a videodisc record An electroconductive resin composition is a blend of 5-30% by weight of carbon black and a graft-polymer. The graft-polymer is obtained by graft-polymerizing 99-76 parts by weight of monomeric vinyl chloride to 1-15 parts by weight of an ethylene-vinyl ac... | 08/02/1983 |
| 4165415 | Method for preparation of a foam of chlorinated vinyl chloride polymer employing a lower aliphatic alcohol foaming agent A method for preparing foams of chlorinated vinyl chloride polymers is provided. The foams are prepared by impregnating the chlorinated vinyl chloride polymer with an aliphatic alcohol of from 1 to 5 carbon atoms and thereafter heating the impregnated pol... | 08/21/1979 |
| 4100222 | Agent for improving weatherability of synthetic resin Compositions for improving the weatherability of synthetic resins are prepared by modifying an epoxy resin with at least one acid selected from the group consisting of cinnamic acid, -methylcinnamic acid and o-coumaric acid. The addition of such ag... | 07/11/1978 |
| 4049517 | Process for preparing chlorinated polymer or copolymer of vinyl chloride A process for preparing a chlorinated polymer or copolymer of vinyl chloride which comprises varying the amount of ultraviolet rays irradiated to a unit amount of the polymer or copolymer to control the reaction rate within the range from 0.75-0.25 mole/h... | 09/20/1977 |
| 3984491 | Agent for improving weatherability of synthetic resin Compositions for improving the weatherability of synthetic resins are prepared by modifying an epoxy resin with at least one acid selected from the group consisting of cinnamic acid, -methylcinnamic acid and o-coumaric acid. The addition of such ag... | 10/05/1976 |