US Patent: 2,894,683 - Mechanical indicating apparatus for computing machines


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US Patent: 2,894,683

Mechanical indicating apparatus for computing machines

Patentee:

Edwin P. Davis (exact or similar names) - Denver, CO

USPTO Classifications:

235/59.0TP, 235/59T, 235/60.4, 235/61.0PD, 235/61A

Tool Categories:

electrical devices : computer apparatus and systems

Assignees:

Van Norman Industries, Inc. - Springfield, MA

Manufacturer:

Van Norman Industries, Inc. - Springfield, MA

Witnesses:

Unknown

Patent Dates:
Applied:	Oct. 24, 1955
Granted:	Jul. 14, 1959

Patent Pictures:

USPTO (New site tip)
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Vintage Machinery entry for Van Norman Machine Tool Co.

Description:

This patent relates to an electro-mechanical accounting calculator. It was assigned via mesne assignments to Van Norman; presumably it was originally assigned to Digit-Ometer Co. of Denver, CO. See Canada patents CA-565,711 and CA-579,568.