
Aparelho auditivo transistor Silvertone 8003
1950
1950
1953
1953
1953
1953
1954
1954
1954
1954
1954
1954
1954
1954
1954
1954
1955
1955
1955
1955
1955
1955
1956
1956
1956
1956
1956
1956
1957
1957
1957
1957
1957
1958
1958
1958
1958
1958
1958
1959
1959
1959
1960
1960
1960
1960
1960
1960
1961
1960
1961
1961
1961
1962
1962
1963
1964
1964
1964
1965
1965
1966
1965
1967
1967
1967
1968
1968
1968
1969
1970
1971
1971
1972
1974
1975
1975
1975
1975
1975
1978
1980
1984
1985