Re: No serial nr. at hp-45 Message #3 Posted by Dave on 5 May 2002, 5:24 p.m., in response to message #1 by Ralf Saalfeld
Eary HP calcs had serial numbers on metal foil either inside battery compartment or on back between lower rubber feet. These are easily removed, replaced, or forged so the value in authenticating a calculator is questionable.
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