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The first types of small modular telephone connectors were created by AT&T in the mid-1960s for the plug-in handset and line cords of the Trimline telephone. [1] Driven by demand for multiple sets in residences with various lengths of cords, the Bell System introduced customer-connectable part kits and telephones, sold through PhoneCenter stores in the early 1970s. [2]
Electrical outlet, also referred to as a wall plate, outlet cover, or socket cover; Front panel, of computers; Head unit, stereo system component; Motherboard, input/output port panel such as on an ATX; Cover (container) Faceplate (housing), decorative elements of housing Nokia 5110, mobile phone with interchangeable faceplates
A keystone module for a CAT5 network cable A 3-port keystone wall plate. A keystone module is a standardized snap-in package for mounting a variety of low-voltage electrical jacks or optical connectors into a keystone wall plate, face plate, surface-mount box, or a patch panel.
This is the minimum subscriber count required for the YouTube Partner Program, which also requires a minimum of 4,000 total viewer watch hours in the past 12 months, plus a manual review of the channel's content to determine compliance with the program guidelines. [11] Bronze was for channels with 10,000 to 99,999 subscribers. [12]
By the 1920s, battery holders used twin metal clips (like fuse holders) to hold the battery in place while making electrical contact. Patent no. 1439429 was granted in Dec. 1922 for an assembly with two spring arm clips, a small switch, and a lamp assembly on the end of connected wires.
Beverage holders, writing guides, grip strengtheners, and other occupational therapy items were designed, printed, and compared with commercially available counterparts in a cost analysis. It found that the 3D printed items were on average 10.5 times more cost effective than commercial alternatives. [6]
The Soldier Plate Carrier System (SPCS), known commercially as the KDH Magnum TAC-1, is a plate carrier developed for the U.S. Army which provides protection in accordance with if not greater than, the Improved Outer Tactical Vest. [2] The SPCS is a lighter alternative to the IOTV, with increased mobility and comfort.
The Modular Scalable Vest (MSV) is a bullet-resistant vest that has been introduced by the United States Armed Forces in 2018. The Modular Scalable Vest is replacing all other body armor systems in use, including the OTV (outer tactical vest) , IOTV (improved outer tactical vest) and SPCS (soldier plate carrier system) . [ 1 ]