Number | Date | Country | Kind |
---|---|---|---|
80 02505 | Feb 1980 | FRX |
This is a continuation of Ser. No. 229,749 filed Jan. 29, 1981 now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
1973510 | Schieferstein | Sep 1934 | |
3502290 | Legrand et al. | Mar 1970 | |
3972491 | Ferris et al. | Aug 1976 | |
4088042 | Desjardins | May 1978 |
Entry |
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"Advanced Development of a Helicopter Rotor Isolation System for Improved Reliability", vol. 1, Summary Report, Kaman Aerospace Corp., Bloomfield, Conn. 06002, 12-1977, pp. 17/21. |
Number | Date | Country | |
---|---|---|---|
Parent | 229749 | Jan 1981 |