Number | Name | Date | Kind |
---|---|---|---|
3465819 | Dixon | Sep 1969 | |
3478825 | Closmann | Nov 1969 | |
3500934 | Magnuson | Mar 1970 | |
3532528 | Herce | Nov 1970 | |
3583165 | West | Jun 1971 | |
3620301 | Nichols | Nov 1971 | |
3817039 | Stewart et al. | Jun 1974 | |
3927719 | Maser | Dec 1975 | |
3950029 | Timmins | Apr 1976 | |
4017119 | Lewis | Apr 1977 | |
4044563 | Hurst et al. | Aug 1977 | |
4096912 | Lewis et al. | Jun 1978 | |
4131416 | Watson et al. | Dec 1978 | |
4133580 | French | Jan 1979 | |
4201419 | Hutchins | May 1980 | |
4239284 | Ridley et al. | Dec 1980 | |
4272127 | Hutchins et al. | Jun 1981 | |
4315657 | Burton | Feb 1982 |
Number | Date | Country |
---|---|---|
682981 | Nov 1952 | GBX |
Entry |
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"Low Pressure Pneumatic Pipe Line Conveying . . . ", by Radmark. |