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  Collapsible steering column invented but not marketed
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  Dr. C. Hunter Shelden comes up with the idea of retractable seat belts
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  Airbag patented by John Hetrick
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  Ford produces a safety steering wheel
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  Saab introduces seat belts as a standard feature in cars
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  Three point seatbelts put into production by Volvo, General Motors begins developing a spring for a collapsible steering column
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  General Motors begins developing a spring for a collapsible steering column
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  General motors begin installing collapsible steering columns in new cars, including the 1967 Chevrolet Impala
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  Victoria, Australia is the first state in the world to make wearing a seat belt compulsory
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  Ford installs airbags in some cars as an experiment
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  Airbags become a common feature in new cars
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  The 2014 Chevrolet Impala is released featuring 10 airbags