Crown Trademark 1 1935 - 1949
Full Bee Trademark 2 1950 - 1959
Lg. Stylized Trademark 3LS 1957 - 1963
Sm. Stylized Trademark 3SS 1960 - 1972
Three Line Trademark 4 1964 - 1972
Trademark 5 1972 - 1979
Trademark 6 1979 - 1991
Trademark 7 1991- 2000
Trademark 8 2000 - Present
Future