- 1Reference: IG6/8/2/251
Title: Intercom No. 251 includes: - Cutler-Hammer, Belgium p4-5 - introduction of extended range of dc s...
Level of description: item
Date Free Text: Dec 1976
Production date: From: 1926 To: 1976 - 2Reference: IG6/7/3/4
Title: Intercom Vol. III. No 4 Includes: - Foreword by R K Fleming including comments on the progress of ...
Level of description: item
Date Free Text: April 1950
Production date: From: 1950 To: 1950