HEB (H. ERNAULT-BATIGNOLLES) HN Copying Unit. Applicable to a number of the Company's lathes. Detailed Operation Manual with many sectional drawings. English Text.
 

HEB (H. Ernault-Batignolles) OP320 and OP420 Lathes: Operation and Maintenance Manual with Sectional Diagrams.

HEB (H. Ernault-Batignolles) OP320 and OP420 Lathes: Parts Manual as superb Exploded-Component Drawings and Electrical Schematics. English and French text. 158 pages