Bladder restrictors, i.e. mechanical means, other than peripheral or circumferential means, for

Official title: {Bladder restrictors, i.e. mechanical means, other than peripheral or circumferential means, for restricting expansion in inflated state of inflatable bladders or chambers, e.g. welded spots or lines, or internal braces for limiting thickness}

B63C2009/0082 (Bladder restrictors, i.e. mechanical means, other than peripheral or circumferential means, for) appears on 4 US grants and 2 published applications in this corpus.