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Orton's lightning calculator, and accountant's assistant by Hoy D. Orton ; entirely new ed., with extensive modifications and improvements
Historical Society of Pennsylvania - Closed Stacks Dj .867
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- Format:
- Book
- Language:
- English
- Subjects (All):
- Ready-reckoners.
- Lightning.
- Arithmetic.
- Calculator.
- Local Subjects:
- Lightning.
- Arithmetic.
- Calculator.
- Physical Description:
- vi, 194 p. : ill. (ports.) ; 18 cm.
- Place of Publication:
- Philadelphia : Collins, [c1871]
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