00509nam 2202518 45000010005000000030023000050050009000280080041000370820008000780720039000860200018001251000018001432600024001612500006001852450032001916500039002236500035002626500020002972518StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a621 aInteroduction to Switch Technology a0-07-040769-x ajohn r. mason bMC GRAW,HILL c1993 a4 aSwitch engineering handbook aInteroduction to Switch Technology aPrecision Snap-Action Switches aRotary Switches