* US Patent # 6,610,957;
"Welding Shielding Gas Saver Device" August 26, 2003; Canadian
Patent # 2,455,644.
The "Flow Rate Limiter" device is covered by 2008 US
patent # 7,462,709. Other site material
may be covered under Patents # 7,015,412;
# 7,019,248 or # 8,104,094
Copyright 1999-2012
WA Technology TM;
GSS TM; All rights
reserved.
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