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							1965
 
Hardware Description
This Model 71-85-4 "Premier" from the mid-1960s is a manually-operated adder and subtractor for decimal currency. It includes a credit balance mechanism to provide true negative totals, but is otherwise one of the simplest models in the Premier series.
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Model Number:
71-85-4 - 
			
Manufacturer:
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Hardware Type:
Calculator - 
		    
Manufacture Year:
1965 - 
			
More Info:
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