Insulators Home > Insulator Styles > Glass > Threaded > CD 196.5
David Wiecek says in A Visit to the AT&T Archives that "Hemingray proposed a transposition insulator shorter that the regular CD 196 to AT&T. The blueprint was sent to AT&T for approval. The blueprint is dated 10/24/[19]10 and is signed by Ralph Hemingray on the back and looks remarkably similar to CD 196.5."
Insulators Home > Insulator Styles > Glass > Threaded > CD 196.5
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