Title
Von Reppert Calculator - Typewriter attachmentCatalog Number
102698426Type
Still imageDescription
B&W image of a Von Reppert invention that attaches to an Underwood typewriter. Shows the typewriter on a base with the calculator keys underneaththe typewriter keys. The results are presented on a component that rises up behind the typewriter carriage.
Verso: Prototype Calculating Machine Patent # 1,302,250 Rachard v. Reppert
Dimensions
overall: 6 1/2 in x 4 1/2 inCategory
PhotographCredit
Courtesy of Gwen BellLot Number
X7413.2015
Related Records
| 102698427 | Von Reppert Calculator - Typewriter attachment |