SONA-GRAPH
USPTO Trademark Record · Serial No. 71603689
Trademark details
It was initially claimed by KAY ELECTRIC COMPANY on 19500918.
That brand applies to the following goods and services:INSTRUMENT WHICH IS A SOUND SPECTROGRAPH WHICH PRODUCES PERMANENT VISUAL RECORDS SHOWING DISTRIBUTION OF ENERGY VS. BOTH FREQUENCY AND TIME.
You can learn more about that trademark on the USPTO website: View the USPTO record
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