Philadelphia Watch Case Company, Trademarks
setName: label: See more items in
content: Jon and Jennifer Hanson Watch and Clock Collection
label: See more items in
content: Jon and Jennifer Hanson Watch and Clock Collection / Series 5: 2016.3197 Addenda / 5.2: Patents and Trademarks
unitdate: label: Date
content: circa 1913
container: label: Container
content: Box 21, Folder 1
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials