72310508
Oct 24, 1968
Nov 10, 1970
[ IRRIGATION DEVICES AND SYSTEMS, INCLUDING SOIL MOISTURE SENSING DEVICES FOR INITIATING AND TERMINATING IRRIGATION CYCLES, ] PROGRAM TIMERS FOR CONTROLLING A SERIES OF IRRIGATION OUTLETS [ , VACUUM RESPONSIVE VALVES AND REMOTE CONTROL VALVES, SPRINKLERS, FITTINGS, TUBING, AND OTHER COMPONENTS OF IRRIGATION DEVICES AND SYSTEMS ]
Firearms