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It holds things closed.
The safety pin has a pin that goes into the head of the pin, and you push the point in or out of the head of the pin.
a safety pin
safety pin
safety pin
The safety pin was invented to pay off a debt.
In 1850, a safety pin cost around 1 to 2 cents, depending on the quality and size of the pin. Some higher-quality pins may have been more expensive, but this was the general price range for a standard safety pin during that time period.
excellent tool for road side attitude adjustments
No it is not made of cells it is dead a safety pin is not alive
why did Walter hut make the safety pin
Walter Hunt invented the safety pin in 1852
The safety pin was originally patented by Walter Hunt of New York. Walter received a patent for the safety pin on April 10, 1849.