EX 19442 (See EX 19028 and EX 19592), Air switch telltale system
name: label: Collection Creator
content: United Shoe Machinery Corporation
setName: label: See more items in
content: United Shoe Machinery Corporation Records
label: See more items in
content: United Shoe Machinery Corporation Records / Series 5: Research and Development Department Records / 5.10: Experimental (EX) Files
unitdate: label: Date
content: 1964 - 1965
container: label: Container
content: Box 87, Folder 8
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials