Number | Name | Date | Kind |
---|---|---|---|
1463556 | Reed | Jul 1923 | |
2470056 | Seibel | May 1949 | |
2575533 | Seibel | Nov 1951 | |
2621140 | Bitterli et al. | Dec 1952 | |
2659444 | Stanley | Nov 1953 | |
3013746 | Siebenthal | Dec 1961 | |
3098723 | Micks | Jul 1963 | |
3215370 | Strydom | Nov 1965 | |
3217808 | Elmer | Nov 1965 | |
3228479 | Nagler | Jan 1966 | |
3237697 | Ford et al. | Mar 1966 | |
3321019 | Dmitroff et al. | May 1967 | |
3330362 | Kastan | Jul 1967 | |
3384185 | Fernandez | May 1968 | |
3395760 | Hoffman | Aug 1968 | |
3445282 | Olson et al. | May 1969 | |
3477796 | Weiland | Nov 1969 | |
3483146 | Janssen et al. | Dec 1969 | |
3484174 | McCoubrey | Dec 1969 | |
3518221 | Kenyon et al. | Jun 1970 | |
3528753 | Dutton et al. | Sep 1970 | |
3533714 | Pfleiderer | Oct 1970 | |
3558082 | Bennie | Jan 1971 | |
3559923 | Moore | Feb 1971 | |
3562198 | Slocombe | Feb 1971 | |
3567797 | Mango et al. | Mar 1971 | |
3598693 | Andersen et al. | Aug 1971 | |
3627466 | Steingiser | Dec 1971 | |
3658748 | Andersen et al. | Apr 1972 | |
3667863 | Breuner | Jun 1972 | |
3669566 | Bourzuardez et al. | Jun 1972 | |
3713753 | Brunsch | Jan 1973 | |
3796513 | Jonas | Mar 1974 | |
3799701 | Rothman | Mar 1974 | |
3806489 | Rieux et al. | Apr 1974 | |
3812064 | Nichols | May 1974 | |
3874820 | Fenaughty | Apr 1975 | |
3876607 | Snell et al. | Apr 1975 | |
3879153 | Breuner | Apr 1975 | |
3880551 | Kisovec | Apr 1975 | |
3908040 | Dauksys | Sep 1975 | |
3923571 | Aoki et al. | Dec 1975 | |
3943090 | Enever | Mar 1976 | |
3950115 | Euler | Apr 1976 | |
3957227 | Baskin | May 1976 | |
3957716 | Weldy | May 1976 | |
3967996 | Kamov et al. | Jul 1976 | |
3972821 | Weidenbenner et al. | Aug 1976 | |
3989673 | Jenkins et al. | Nov 1976 | |
3999886 | Ormiston et al. | Dec 1976 | |
4008980 | Noehren et al. | Feb 1977 | |
4012169 | Mouille et al. | Mar 1977 | |
4037988 | Laird | Jul 1977 | |
4083735 | Caramanian | Apr 1978 | |
4115599 | Taylor | Sep 1978 |
Number | Date | Country |
---|---|---|
951301 | Jul 1974 | CAX |
532399 | Feb 1922 | FRX |
1334446 | Jul 1963 | FRX |
Entry |
---|
Cheney; Results of Preliminary Studies of a Bearingless Helicopter Rotor Concept; American Helicopter Society 28th National Forum; 5/72. |