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Title:
Flush valve system
Document Type and Number:
United States Patent 2543438
Inventors:
Cochran, Francis R.
Publication Date:
02/27/1951
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Assignee:
Cochran, Francis R.
Primary Class:
4/411
International Classes:
E03D1/012
;
E03D1/34
;
E03D1/00
;
E03D1/30
US Patent References:
0301868
0441097
0994793
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