G - Physics – 01 – L
Patent
G - Physics
01
L
G01L 13/00 (2006.01) G01L 19/12 (2006.01)
Patent
CA 2739857
An alarm color plate structure of a micro-differential pressure gauge includes a transparent casing. The transparent casing has a slot which is located corresponding to the range of movement of a pointer or a scale plate. An alarm plate is provided in the slot. The alarm plate has a plurality of areas with different colors or marks for the user to know whether the position and the value of the pointer are normal or not.
Battison Williams Dupuis
Chen Li-Chen
LandOfFree
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