F. O. Taylor using P-A-X telephone. In: Advertisement in Time, January 1, 1940
name: label: Collection Author
content: Parke, Davis Company
setName: label: See more items in
content: Parke, Davis Research Laboratory Records.
label: See more items in
content: Parke, Davis Research Laboratory Records. / Series 13: Addenda
container: label: Container
content: Box 403, Folder 34
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials