Signaling systems and devices
By: by Edwards
Publisher: Edwards and Co.
Published: 1934
Place of publication: Norwalk, Conn
Language: eng
Subjects: Catalogs; Bells; Chimes; Metal castings; Electric alarms; Buildings; Electric equipment; Edwards and Company
Notes: Date from text.

Title from cover.

"A. I. A. File No. 31i."

Includes index.

Composed of bulletins.
Table of contents: title: No. 100. Bells, horns, buzzers, chimes, etc.; title: No. 105. Annuciators; title: No. 110. Transformers, rectifying units, etc.; title: No. 115. Push buttons and accessories; title: No. 120. Burglar and hold-up alarm material; title: No. 125. Door openers, door switches, etc.; title: No. 130. Relays; title: No. 135. Fire alarm, watchmen & tank systems; title: No. 205. Intercommunicating telephone systems; title: No. 300. Modern hospital signaling; title: No. 440. Lokator.