April 1932 Machinery Trademarks by day
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| 24 | 25 | 26 | 27 | 28 | 29 | 30 |
Machinery Trademarks filed in April 1932
NALCO
Filed: April 1, 1932
PUMPS, WATER-MOTORS AND MECHANISMS FOR PROPORTIONING REAGENTS FED TO A WATER PURIFYING SYSTEM
Owned by: NALCO CHEMICAL COMPANY
Serial Number: 71325718
