Four Function +

Texas Instruments

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TI-108
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TI-1025
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TI-1706II
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TI-1795+
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TI-1890 (TI Converter)

Casio

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Casio HS-8
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Casio Memory-8R

Radio Shack

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EC-241
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Statesman Thin LCD EC-259
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EC-270
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EC-380

Unitrex

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89 SLW
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809D
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842D

Other

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I.T.C. K-10LS
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Citizen W11
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Rockwell 24K II
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Sanyo CX-0132
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Ruler Calculator
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Canon FC-42S
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Canon FC-53
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Canon Palmtronic 8s
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Microlith NO.111 (Version 1)
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Microlith NO.111 (Version 2)
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Lloyd's Accumatic 603