Close up of an earthquake seismograph machine in vector format premium vector by Microstock77

> DOWNLOAD THIS IMAGE <

Please buy a commercial licence for commercial use without attribution.
activity vector background curve graphic paper isolated rate health medicine healthcare medical care technology line wave instrument machine Cardiology heart electronic sound measure pulse test pen record drawing grid trace needle disaster graph chart beat diagnosis normal diagram detector quake earthquake polygraph cardiogram equalizer Cardiac electrocardiogram Ecg seismic seismograph seismometer

Categories:Array ( ) 1