Metal and plastic case, San Leandro, CA, 1965, 11 numerical keys (including decimal point) and 13 additional keys including 5 functions, 14-position decimal dial, CRT screen, detachable power cord. Friden's 130 series were the first solid state calculators. The 132, issued two years after the 130, added the square root function. Friden, Inc. was purchased by Singer the year that this calculator was made and the company moved to Palo Alto.
Metal and plastic case, San Leandro, CA, 1965, 11 numerical keys (including decimal point) and 13 additional keys including 5 functions, 14-position decimal dial, CRT screen, detachable power cord. Friden's 130 series were the first solid state calculators. The 132, issued two years after the 130, added the square root function. Friden, Inc. was purchased by Singer the year that this calculator was made and the company moved to Palo Alto.
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