Seat belt that required a particular technical approach would rapidly become dated as motor manufacturers would tool up for a particular standard which could not easily be changed. For example, in 1969 there were competing designs for lap and three-point seat belts, rapidly tilting seats, and airbags being developed. But as countries started to mandate seat belt restraints the global auto industry invested in the tooling and standardized exclusively on seat belts, and ignored other restraint designs such as air bags for several decades As of 2016, seat belt laws can be divided into two categories: primary and secondary. A primary seat
Ethnic minorities in Czechoslovakia organize them are not necessarily neutral. Ethnic minorities in Czechoslovakia This article describes ethnic minorities in Czechoslovakia from 1918 until 1992. Czechoslovakia was founded as a country in the aftermath of World War I with its borders set out in the Treaty of Trianon and Treaty of Versailles, though the new borders were de facto established about a year prior. One of the main objects of these treaties was to secure independence for minorities previously living within the Kingdom of Hungary or to reunify them with an existent nation-state. However some territorial claims were based on economic grounds instead of