2,579,247         Dec., 1951          Angenieux                354/156
2,649,021         Aug., 1953          Angenieux                350/224
2,701,982         Feb., 1955          Angenieux                350/215
2,847,907         Aug., 1958          Angenieux                350/184
2,873,646         Feb., 1959          Angenieux                350/187
3,090,282         May, 1963           Angenieux              350/187 X
3,249,008         May, 1966           Angenieux                350/577