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A.D. Gritman and George Snow
Snow Dental Company Buffalo, NY
This "fixed condylar guide" articulator was patented and introduced by George B. Snow and Abel DeWitt Gritman with the Snow facebow in 1899. The Gritman articulator featured descending condylar paths of 15 degrees, an average determined by measurements taken from a large number of patients. The condylar paths also included a slight Balkwill-Bennett angle to represent the average oblique descent of the condyle. The Snow facebow is highly regarded at the first "true" facebow because it was designed to actively transfer the anatomic relationship of the maxilla to the condyles from the patient to the articulator.
Dr. Edgar N. Starcke's articles in the Journal of Prosthodontics have more information on the history of articulators.