Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US486153A Inventor David L Neuman Original Assignee David L Neuman Priority date (The priority date is an assumption and is not a legal conclusion. Google Patents Means for increasing dredge outputÄownload PDF Info Publication number US2346180A US2346180A US486153A US48615343A US2346180A US 2346180 A US2346180 A US 2346180A US 486153 A US486153 A US 486153A US 48615343 A US48615343 A US 48615343A US 2346180 A US2346180 A US 2346180A Authority US United States Prior art keywords suction pump dredge booster vacuum Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US2346180A - Means for increasing dredge output US2346180A - Means for increasing dredge output
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