A. W. Cash Valve Manufacturing Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5228470 Self draining hose connection dual check valve back flow preventerExpiredJan 22, 92Jul 20, 93[F16K]
4712575 Self-draining hose connection vacuum breaker and backflow preventerExpiredMar 02, 87Dec 15, 87[F16K]
4253304 Thermal elementExpiredJun 23, 78Mar 03, 81[F03G]

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