The Improved Multiphase Octoplex Self-Recording Slide Stick (Patent applied for.)

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OS_ENG_v05_i03_020a.pdf (62.2 KB)

Date

1922-03

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Publisher

Ohio State University, College of Engineering

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Abstract

Description

Submission for the "Impossible Inventions Contest"

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Citation

Ohio State Engineer, vol. 5, no. 3 (March, 1922), 20.

URI

http://hdl.handle.net/1811/35059

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Ohio State Engineer: Volume 5, no. 3 (March, 1922)