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  2. Ignition interlock device - Wikipedia

    en.wikipedia.org/wiki/Ignition_interlock_device

    The costs of installation, maintenance, and calibration are generally paid by the offender. Costs vary considerably around the world: As of 2015 in the US, on average, ignition interlock devices cost about $70–150 to install and about $60–90 per month for monitoring and calibration. [2]

  3. Hydraform International - Wikipedia

    en.wikipedia.org/wiki/Hydraform_International

    In 2017, Hydraform International provided their M7MI range machines which produced 2000 blocks per day [17] and resulted in the project being finished for 30% fewer than the cost anticipated for a project using non-interlocking bricks and mortar.

  4. Interlocking - Wikipedia

    en.wikipedia.org/wiki/Interlocking

    Railway interlocking is of British origin, where numerous patents were granted. In June 1856, John Saxby received the first patent for interlocking switches and signals. [2] [3]: 23–24 In 1868, Saxby (of Saxby & Farmer) [4] was awarded a patent for what is known today in North America as “preliminary latch locking”.

  5. Corrugated box design - Wikipedia

    en.wikipedia.org/wiki/Corrugated_box_design

    Corrugated box design is the process of matching design factors for corrugated fiberboard (sometimes called corrugated cardboard) or corrugated plastic boxes with the functional physical, processing and end-use requirements. Packaging engineers work to meet the performance requirements of a box while controlling total costs throughout the ...

  6. Electromagnetic lock - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_lock

    The principle behind an electromagnetic lock is the use of electromagnetism to lock a door when energized. The holding force should be collinear with the load, and the lock and armature plate should be face-to-face to achieve optimal operation. The magnetic lock relies upon some of the basic concepts of electromagnetism.

  7. Lego - Wikipedia

    en.wikipedia.org/wiki/Lego

    Lego (/ ˈlɛɡoʊ / ⓘ LEG-oh, Danish: [ˈle̝ːko]; [ 1 ] stylised as LEGO) is a line of plastic construction toys manufactured by the Lego Group, a privately held company based in Billund, Denmark. Lego consists of variously coloured interlocking plastic bricks made of acrylonitrile butadiene styrene (ABS) that accompany an array of gears ...

  8. Truss bridge - Wikipedia

    en.wikipedia.org/wiki/Truss_bridge

    The Hart Bridge spanning the St. Johns River in Jacksonville, Florida, is a continuous, cantilevered truss bridge which combines a suspended road deck on the 332-metre (1,088 ft) main span and through truss decks on the adjacent approach spans. A railway bridge with a rail track in Leflore County, Mississippi.

  9. Brick - Wikipedia

    en.wikipedia.org/wiki/Brick

    The introduction of such holes reduces the volume of clay needed, and hence the cost. Hollow bricks are lighter and easier to handle, and have different thermal properties from solid bricks. The cut bricks are hardened by drying for 20 to 40 hours at 50 to 150 °C (120 to 300 °F) before being fired.

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