Model No. 616 FA: 55
Description: Models 615-617 cover the method of the auxiliary polar orbits, and the cycloid gearing.
RE: S Serie XXXI, Nr. 3-11, p. 85 u.164/165 Hierzu Diapositive 1426/1427, 1429/1433,1385 Category: Cycloids and trochoids
RU: D II 1-9