Number | Date | Country | Kind |
---|---|---|---|
90103289.6 | Feb 1990 | EPX |
Number | Name | Date | Kind |
---|---|---|---|
2843195 | Barvaeus | Jul 1958 | |
3537751 | Masahiko et al. | Nov 1970 | |
3627379 | Faust | Mar 1971 | |
3877749 | Sakurai et al. | Apr 1975 | |
3967852 | Eiselt et al. | Jul 1976 | |
4109959 | Barecki et al. | Aug 1978 | |
4192545 | Higuchi et al. | Apr 1980 |
Number | Date | Country |
---|---|---|
608267 | Aug 1926 | FRX |
5025 | Jan 1893 | GBX |
Entry |
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Page 18 Western Aviation, May 1957. |