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Electronic calculator with optical input means

  • US 4,091,270 A
  • Filed: 07/19/1976
  • Issued: 05/23/1978
  • Est. Priority Date: 07/19/1976
  • Status: Expired due to Term
First Claim
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1. A keyless portable electronic calculating apparatus for entering data and at least one command encoded on a record medium and for performing calculations upon the entered data and displaying calculation results, the apparatus comprising:

  • manually manipulatable keyless input means for entering the data and command in response to manipulation of the input means over the data and command on the record medium, said input means being the sole means for entering data and commands;

    processor means coupled to the input means for executing each entered command and performing a calculation operation upon the entered data in response to entry of said command by the input means, the entered command specifying the operation to be performed; and

    display means coupled to the processor means for displaying results of the operation by the processor means in response to entry of said command by the input means.

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