Number | Name | Date | Kind |
---|---|---|---|
2659390 | MacLea, Jr. et al. | Nov 1953 | |
3528344 | Rabenhorst | Sep 1970 | |
3617152 | Cummings | Nov 1971 | |
5142412 | Deschamps et al. | Aug 1992 | |
5542472 | Pringle et al. | Aug 1996 | |
5806598 | Amani | Sep 1998 |
Entry |
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"Otis Single and Dual-Acting Gas Pumps" Brochure Otis Engineering Corp., 1982. |