Number | Name | Date | Kind |
---|---|---|---|
2498237 | Baymond | Feb 1950 | |
3941357 | Wurtz | Mar 1976 | |
4278355 | Forberg | Jul 1981 | |
4443109 | Watts | Apr 1984 | |
4518262 | Bornemann et al. | May 1985 | |
4544279 | Rudolph | Oct 1985 | |
4548507 | Mathis et al. | Oct 1985 |
Number | Date | Country |
---|---|---|
1097411 | Jan 1961 | DEX |
1112968 | Aug 1961 | DEX |
1116196 | Nov 1961 | DEX |
Entry |
---|
Hayes & Stolz Brochure. |
Marion Process Equipment Brochure. |
Littleford Polyphase Systems Brochure -Jan. 1989. |