FPC.Library

1. 

Supplement to the compendium of the technical recommendations : issued by CCIF, CCIT, CCIR of the International Telecommunications Union / Automatic Telephone & Electric Co Ltd

Data Publicação: 1957

Monografias  
2. 

Compendium of the technical recommendations : issued by CCIF, CCIT, CCIR of the International Telecommunications Union / Automatic Telephone & Electric Co Ltd

Data Publicação: 1955

Monografias