1. Technical report NGF (series). T-23-56. Practical vacuum treating of non-ferrous melts at Naval Gun Factory, Washington, D. C.; reported by Vincent DePierre, Shingo Inouye. Bookmark Corporate/Agency Authors: Ordnance Bureau (Navy) and Defense Dept. Publisher: Ordnance Bureau (Navy) Date: May 1, 1956 SuDoc number: D 215.10:NGF-T-23-56