Abstract 5 In a sprinkler device a bladder is mounted in a housing to expand or contract under water pressure, thereby moving a sprinkler head up or down.
申请公布号
AU2011202046(B2)
申请公布日期
2016.10.20
申请号
AU20110202046
申请日期
2011.05.04
申请人
Vollrath, Klaus;Vollrath, Jurgen
发明人
Vollrath, Klaus Andreas Michael;Vollrath, Jurgen Klaus
