73118771
Mar 11, 1977
Mar 20, 1979
THROTTLING AND PROTECTIVE APPARATUS FOR PREVENTING EXCESSIVE PRESSURE FROM REACHING THE PRESSURE-SENSITIVE ELEMENTS OF GAUGES, TRANDUCERS, MANOMETERS, THIN GAUGE SYSTEMS OR CONTAINERS AND OTHER PRESSURE-SENSITIVE INSTRUMENTS USED IN BOTH GASEOUS AND FLUID SYSTEMS
Electrical and Scientific Apparatus