Origin of dredging machine
First recorded in 1820–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dredging machine
Perhaps one of the young gentlemen would like a dredging-machine?
Among them are the gunboats,—a cross between a floating fort, a dredging-machine, and a mud-scow.My Days and Nights on the Battle-Field
Charles Carleton Coffin