A report made for the Securities Department of the Secretary of State's Office, Springfield, Illinois upon the practicability and mechanical construction of and the public demand for the devices of the Langford Sales Audit Machine Company ...
By: by Mariner & Hopkins
Series: Harvard pre-1920 social history/business preservation microfilm project -- 03132
Publisher: [s.n.]
Published: 1928
Place of publication: Chicago, Ill
Language: eng
Subjects: Tabulating machines; Langford Sales Audit Machine Company (Boston, Mass.)
Other titles: Devices of the Langford Sales Audit Machine Company.