Watchmen's Time Detectors Operated by Batteries or Magneto Generators (1900)
Holtzer-Cabot Electric Company · Holtzer-Cabot Electric Company · leaf 40
PRICE LIST.Cat. No. 110. 30 to 50 indications, per number, including Bell50 indications and above, per numberAdd 75 cents per number <OI- Return Call Board and Fire AlarmGravity, French or Needle Drop, at same price. Prick. 51 .50 1.35 34 ■ ■ ■ V. T^. ■ I V U iiiiiiiiiiini I Ilium t mi. Hilillll… … Cat. No. 24. W^/ANT Indicators are placed in the return battery circuit of Hotel Annunciators.W On a cylinder are placed nine names indicating the most common wants of theguests. Each pressure on the push button in a room causes this cylinder to revolve andshow the names in their regular rotation.…
