A possibility of application of Plücker's conoid for mathematical modeling of contact of two smooth regular surfaces in the first order of tangency

These characteristic curves reported in the paper in many cases are similar to the indicatrices of conformity CnfR(P/T) and Cnfk(P/T) of two smooth rugular surfaces earlier developed by the author. The obtained results perfectly correlate with the results obtained by other researchers, as well as with the results earlier developed by the author.