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In the late 1960s, ABM acquired the companies later known as Ampco System Parking, CommAir Mechanical, Amtech Elevator Services and Amtech Lighting Services. [8] [13] In 1971, ABM made its debut on the New York Stock Exchange under the ticker symbol ABM. [10] ABM Engineering was established in the early 1990s and received ISO 9002 certification ...
The Sprint was a two-stage, solid-fuel anti-ballistic missile (ABM), armed with a W66 enhanced-radiation thermonuclear warhead used by the United States Army during 1975–76. It was designed to intercept incoming reentry vehicles (RV) after they had descended below an altitude of about 60 kilometres (37 mi), where the thickening air stripped away any decoys or radar reflectors and exposed the ...
The original IBM Personal Computer, with monitor and keyboard. The IBM Personal Computer, commonly known as the IBM PC, spanned multiple models in its first generation (including the PCjr, the Portable PC, the XT, the AT, the Convertible, and the /370 systems, among others), from 1981 to 1987.
Sentinel was a proposed US Army anti-ballistic missile (ABM) system designed to provide a light layer of protection over the entire United States, able to defend against small ICBM strikes like those expected from China, or accidental launches from the USSR or other states. The system would have seventeen bases, each centered on its Missile ...
This is a table of the most widespread or notable anti-ballistic missile (ABM) systems, intended in whole or part, to counter ballistic missiles.Since many systems have developed in stages or have many iterations or upgrades, only the most notable versions are described.
On May 26, 1972, President Richard M. Nixon and Soviet leader Leonid Brezhnev signed the Anti-Ballistic Missile Treaty in Moscow. In 1864, President Abraham Lincoln signed a measure creating the ...
History portal; Art of Europe; Geologic time scale; List of fossil sites with link directory. List of timelines around the world. Logarithmic timeline shows all history on one page in ten lines. Orders of magnitude (time) Periodization for a discussion of the tendency to try to fit history into non-overlapping periods. Time. Planck Time
The Anti-Ballistic Missile Treaty, also known as the ABM Treaty or ABMT, was an arms control treaty between the United States and the Soviet Union on the limitation of the anti-ballistic missile (ABM) systems used in defending areas against ballistic missile-delivered nuclear weapons.