26 CARDIO-CALCULATOR CONSISTING OF A CIRCULAR SLIDE RULE WHICH IS USEFUL IN CONNECTION WITH INFORMATION RECEIVED FROM AN ELECTROCARDIOGRAPH MACHINE TO PROVIDE SUPPLEMENTAL INFORMATION TO A PHYSICIAN CONCERNING DIAGNOSIS OF A MEDICAL PATIENT
Trademark Events
Aug 21, 1995
Expired Sec. 9
Apr 21, 1980
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.