The ornamental design for a lowerunit-propeller combination anti theft lock device, as shown and described.
FIG. 1 is a top plan view of a lower unit-propeller combination anti theft lock device;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a left elevational view thereof,
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a right elevational view thereof; and,
FIG. 7 is an isometric view thereof, showing my design mounted onto a lower unit and propeller assembly.
The broken lines are for environmental purposes only and form no part of the claimed design.
The claimed lower unit-propeller combination anti theft lock device is mounted onto a boat engine to prevent removal of a lower unit and propeller assembly.