Oblon, Spivak, McClelland, Maier & Neustadt
Digital pressure gauge
 A digital pressure gauge includes a casing having a pressure sensitive member which responds when pressure is passed therethrough and a digital display member electrically connected to the pressure sensing member. The gauge includes an insulating rod which engages the pressure sensitive member and which contacts a weight sensing member in response to pressure flowing through an inlet so as to expand the pressure sensitive member. 
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inventional inventional inventional
Tien-Tsai
Huang