THE OPERATOR THE DELANY KEY. A. G. DAY, … » Factory : Seymour, Conn. The ab cut represents th Delany Key, a patent for which was issued Sept. 7, 1880. As it is different in almost every feature from all other keys in use, a description of its operation is necessary. It is a legless Key with hard rub- ber base. Instead of having the contact…
Telegraph -- Periodicals
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