Self-locking safety pin - RITCHIE; FRANCES
A self-locking safety pin comprising a tubular body which extends in circular fashion in a plane between opposed, spaced ends, the ends disposed to form a gap in the circular body, and an elongated curved tongue slidably mounted to extend, under bias, between a closed position extending across the gap from one end of the body into the other, and an open position in which the tongue is ...
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