. . . "SDN:L22::NETT0129" . . "Bigelow opening-closing net" . "Bigelow opening-closing net"@en . "Horizontal opening-closing net - Bigelow (1913)"@en . "accepted"@en . "A hinged ring to which a net with 75 cm diameter mouth was attached. System sent down with ring closed and opened with a messenger. A second messenger released the ring and a draw-string closed the net off."@en . . . . .