Computers - Electronics - Robots - Technology - TV's
Feb. 25 Testing the performance of your Ballpoint Pen: Many ingenious machines are used by the makers of ballpoints to test the little pens which write so many miles on one filling of special ink. This one tests the trace performance
Picture No
13202270
Media ID
46944363
Size
3720px x 5108px
(1.1MB)
Credit
(c) Keystone Pictures USA/ZUMAPRESS.com/Mary Evans
Usage Restrictions
Editorial Use Only - No Property or Model Releases. For any non-editorial use, please contact Mary Evans direct
Source
Keystone Pictures USA
