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| Number | Title | Issue Date |
| 5724255 | Portable emergency action system for chemical releases The present invention provides a calculated protective action zone, such as a safety zone which can be used for evacuation purposes, using simplified input methods and systems and simplified internal calculation methods to model the chemical data. Yet, it... | 03/03/1998 |
| 5718257 | Axial-mounted high flow valve The invention includes an axial-mounted high flow rate valve by fixedly mounting a rotatable valve sealing element so that it pivots on an axis which is substantially parallel to a central axis of the pipe or conduit to which the valve is connected. The r... | 02/17/1998 |
