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Watchmen's Time Detectors Operated by Batteries or Magneto Generators (1900)
Holtzer-Cabot Electric Company · Holtzer-Cabot Electric Company · leaf 22
PRICES OF WOOD BOX GONGS. Cat. No. Prji E. 370. No. 1. m inch Gong vibrating $1.12 371. — • 3 .. ti «. 1.25 372. 1 . 3. 3# .. .. 1.50 373. t t 4. 4 it .. .. 2.00 374. [ . 5. 5 .. 2.75 375. . • 6. i; .. t. 3.50 376. 1 - 4 ii 4.50 377. S. 8 .. 6.00 378. 10. 10 .i t. 7.50 ELECTRIC BELLS WITH WOOD…Furniture · Furnishing Accessories · Electrical engineering · Facility Electrical Power Generating and Storing Equipment · Battery Equipment · Clocks · Gongs · Electric bells · Annunciators · Alarms · Batteries · Motors · Fans
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