Archived Purdue Publications
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Displaying 1 to 2 of 2 results for 1912
Carbon contact resistances. Au: Moore, C.R. Diagram.
Publication: Purdue Engineer
Subject: Telephone Exchange
Date: 1912
no. 9 p. 72-81
Publication: Purdue Engineer
Subject: Telephone Exchange
Date: 1912
no. 9 p. 72-81
Toll telephone traffic. Au: Armstrong, R.S. IL.
Publication: Purdue Engineer
Subject: Telephone Exchange
Date: 1912
no. 9 p. 90-99
Publication: Purdue Engineer
Subject: Telephone Exchange
Date: 1912
no. 9 p. 90-99
