|
US1198731A
|
|
Rope-guiding device for grooved or ribbed winding-drums.
|
|
GB191505140A
|
|
Improvements in Rock Cutting Apparatus.
|
|
GB191405398A
|
|
Improvements in Rock Cutting Apparatus.
|
|
GB191400918A
|
|
An Improvement connected with Suction Dredgers.
|
|
GB191313132A
|
|
Improvements relating to Suction Dredgers.
|
|
US1107806A
|
|
Lubricator for submerged bearings.
|
|
GB191226240A
|
|
Improvements in the Lubrication of Rotating Parts of Dredgers Working Under Water.
|
|
US1086063A
|
|
Centrifugal pump.
|
|
GB191223817A
|
|
Improvements relating to Centrifugal Pumps.
|
|
CA138960A
|
|
Navigable rock cutter
|
|
US1018917A
|
|
Navigable rock-cutter.
|
|
GB191113585A
|
|
Improvements in Navigable Rock Cutters.
|
|
GB191021371A
|
|
An Improvement connected with Suction Dredgers.
|
|
US1013669A
|
|
Suction-dredger.
|
|
GB191014978A
|
|
Improvements in Suction Dredgers.
|
|
US946059A
|
|
Hopper dredger and barge.
|
|
GB190914107A
|
|
Improvements in Hopper Dredgers and Barges.
|
|
GB190907051A
|
|
Improvements in Winches.
|
|
US1020210A
|
|
Lubricating device.
|
|
GB190822675A
|
|
An Improvement in Rock Cutting Apparatus.
|
