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490719
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Information
Patent Grant
490719
References
Source
Patent Number
490,719
Date Filed
Not available
Date Issued
Tuesday, January 31, 1893
132 years ago
CPC
E03D9/12 - Means to prevent freezing of lavatories
Y10T137/4463 - Liquid seal in liquid flow line flow liquid forms seal
US Classifications
004 - Baths, closets, sinks, and spittoons
137 - Fluid handling
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