You know those cardboard covers with the sticky strips to keep trousers from sliding off, that goes over the crossbars of wire hangers? Last week a donation of a suit came on an old wire hanger that had one of these covers, but this one also had writing on it. The ‘Grippo’ with the U.S. patent # 2590738, filed in 1948 and granted on March 25, 1952.
