Patent number: 3742201Filing date: 22 Feb 1971Issue date: 6 Jun 1973
T 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
0 4 8 12 16 20 24 28 32 36 40 4 4 48 52 56 60
FIG. 8
