Pinwheel download

"This type of calculator is designed and used about 1850 until 1970 he had."
Account type include the use until about 1850 has been designed and is currently 1970.Electronic account is already there, but very expensive. <>

---

Principle 1 .. 9 and, depending on the direction of rotation cilinder digit cilinder, a gear wheel, increasing or decrementing a long needle-digit improvements can be extended pin consists of a revolution per position.During br.

---

program line documentation with examples of various calculations are.

---

Calculations STEP mode, showing the basic steps can be done
carry such proliferation.
If the mechanical calculator, such as "expressions" and the web, musea
search as well as private collectors

---

shows their great machines. Pinwheel can now download free 1.0.