American Writing Instrument Patents Vol. 2 1911-1945 (2014) - pen pencil patents

Description

This second volume covers patents issued from 1911 to 1945 in the same, easy to use format as the first volume.  Although this volume covers only 35 years, it covers significantly more data.  For that reason, the descriptive categories are more detailed than in the first volume, allowing for more accurate searches by description.
Coilbound, 376 pages.