In the year of 1970, get more details from the Wikipedia page of digital watch.
Invention
When you have an invention, the first step is to get a patent for the invention.
his first invention was the sespension bridge
The Apple I, a personal computer was the first invention of apple.
His first invention was the Apple lisa
The Chinese were the first to use paper as an invention.
I believe a cave man. The first invention was probably the wheel.
Gyro's First Invention has 20 pages.
watch the invention of lying for answers;)
Louis Brennans First invention was the underwater torpedo.... Louis Brennan.
The magnetic compass was the first invention that might be called modern.
so people had an easir way to watch movies