Title
Slide ruleCatalog Number
102631494Type
Physical objectDate
1960 ca.Manufacturer
Relay Industrial Co.Place Manufactured
JapanIdentifying Numbers
Model number | 505 | |
Other number | P135 | Donor's ID number for rule |
Serial number | I.K-3 |
Model number | 505 | |
Other number | P135 | Donor's ID number for rule |
Serial number | I.K-3 |