And now a page from our "Sunday Morning" Almanac: February 21st, 1858, 158 years ago today ... the day Edwin Holmes of Boston installed the very first electric burglar alarm. Holmes had bought the ...

Fire-Lite Alarms plans to make its complete portfolio of fire system products available through electrical wholesale distribution. Fire-Lite will make available its complete line of conventional and ...

The Model VS-SP is a vane type waterflow switch for use on wet sprinkler systems. These devices may be used as sectional flow indicators on large sprinkler systems and on smaller... Potter’s PFC-6000 ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This clock dates from the 1930s, when ...