Aristo 80107 Exhaust Gas Slide Rule

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Country of manufacture: Germany,            Date of manufacture: ____
Overall length: 15.9 cm,          Width: 3.2 cm,           Weight: 24.9 gms
Materials: all plastic, simplex design
Cursor: 2.2 X 3.1 X 0.6 cms; all plastic, slightly magnifying;     lines = one line
Scales: 11
Front:% loss, t_{exhaust gas}-t_air [ % CO₂, °F, C ] D, °C
Back: formnulae
Gauge Marks: [   π   ]
Condition: C4 (Minimum Signs of Use)
Came with: brown leather pocket slipcase

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