Tag Archives: windshield display

Spengler’s head-up display

Nowaday cars is a proving area for technological innovations. It is now, and it was in the past at the dawn of the automotive industry.

A patent for invention “Speed indicator” (US2430690) had been published in a distant 1947. Author is Lester B Spengler. The invention relates to automotive vehicles and describes a speedometer, which suspended on line of driver’s look.

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