Number | Name | Date | Kind |
---|---|---|---|
2148530 | Burke | Feb 1939 | |
3009473 | Hennen | Nov 1961 | |
3259052 | Bradley et al. | Jul 1966 | |
3337991 | Adams | Aug 1967 | |
3406623 | Lambert | Oct 1968 | |
3411425 | Lambert | Nov 1968 | |
3580238 | Diehl | May 1971 | |
3592240 | Hedrick et al. | Jul 1971 | |
3785272 | McNabney et al. | Jan 1974 | |
4146048 | McCabe | Mar 1979 | |
4210070 | Tatum et al. | Jul 1980 | |
4241748 | McCabe | Dec 1980 | |
4263930 | McCabe | Apr 1981 | |
4380188 | Nichols | Apr 1983 |
Number | Date | Country |
---|---|---|
2307228 | May 1976 | FRX |
2316513 | Jan 1977 | FRX |
Entry |
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Trade Literature entitled "Options and Accessories", relating _to the ETL.RTM. Electro Thermal Link distributed by Air Balance Inc. |