Adding machine
Adding machine, circular, stylus operated, 2 5/8" diameter mounted on 3" square metal plate, (German patent D.R.P. 335921)
Details
- Category:
- Mathematics
- Object Number:
- 1954-656
- type:
- adding machines (stylus)
- credit:
- Mr L. Mercer
Adding machine, circular, stylus operated, 2 5/8" diameter mounted on 3" square metal plate, (German patent D.R.P. 335921)