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Pages in category "Manufacturing companies based in St. Louis" The following 34 pages are in this category, out of 34 total. This list may not reflect recent changes .
Kellogg company logo as used from the 1920s to the 1950s. The Kellogg Switchboard and Supply Company was an American manufacturer of telecommunication equipment. Anticipating the expiration of the earliest, fundamental Bell System patents, Milo G. Kellogg, an electrical engineer, founded the company in 1897 in Chicago to produce telephone exchange equipment and telephone apparatus.
A low-voltage switchboard A modern electric switchboard. An electric switchboard is a piece of equipment that distributes electric power from one or more sources of supply to several smaller load circuits. It is an assembly of one or more panels, each of which contains switching devices for the protection and control of circuits fed from the ...
In a manually operated switchboard, this current flowed through a relay coil, and actuated a buzzer or a lamp on the operator's switchboard, signaling the operator to perform service. [20] In the largest cities, it took many years to convert every office to automatic equipment, such as a panel switch.
Route 231 is a highway in the St. Louis, Missouri, area. It begins at U.S. Routes 61 and 67 (US 61 / US 67) in Arnold. It follows Telegraph Road through Jefferson and St. Louis counties, being Oakville's main thoroughfare. It then continues further north as Kingston Drive and then Broadway.
List of the mainly electro mechanical switching systems from Hasler AG Bern, which were used in public telephone network in Switzerland for many decades. Hasler AG finally merged into Ascom in 1987. HS 25 (modified from the Ericsson OL-100 system with double relays and 25-point selector (Ericsson license), mainly used for small villages and ...
Motor vehicle manufacturers based in Missouri (12 P) Pages in category "Manufacturing companies based in Missouri" The following 14 pages are in this category, out of 14 total.
This list may not reflect recent changes. 0–9. 1907 Dorris Motor Car Company Building; C. Caps Brothers Manufacturing Company; F. Ford Kansas City Assembly Plant; K.