
Cables and straps associated with Portable electrocardiograph, England, 1978
1978
1978
1978
1982
1980
1981
2000-500
2000-800
1980
1980
1981
1980
1981
1980-1981
circa 1980
1981
1982
1981
1978
1979
1979
1982
1982
1980
1978
1978
1980
1980
1978
circa 1980
circa 1980
1982
1979
1981
1981
1980
1978-1980
1980
1982
circa 1980s
1978
1979
1979
circa 1981
1981
1980
1982
2000-500
1980
1980-1982
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