Number | Name | Date | Kind |
---|---|---|---|
1029462 | Rife | Jun 1912 | |
2112012 | Byerlein | Mar 1938 | |
3215426 | Engels | Nov 1965 | |
3279780 | Williamson | Oct 1966 | |
3290034 | Williamson | Dec 1966 | |
3457765 | Heiser | Jul 1969 | |
3583201 | Popaz | Jun 1971 | |
3913460 | Wright | Oct 1975 |
Number | Date | Country |
---|---|---|
890701 | Jan 1972 | CAX |
Entry |
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Publication: "Pressure From Parallels", by Teledyne, Efficient Industries, Hyson Division. |
Publication: "New Universal Cushion and Ram Adapter", by Hyson Division of Efficient Industries Corp., Pub. 1973. |