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723413
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Patent Grant
723413
References
Source
Patent Number
723,413
Date Filed
Not available
Date Issued
Tuesday, March 24, 1903
121 years ago
CPC
F42B19/40 - by expelling liquid ballast
Y10T137/085 - Pressure or head controlled
US Classifications
137 - Fluid handling
251 - Valves and valve actuation
440 - Marine propulsion
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