US PATENT SUBCLASS 440 / 72
.~.~ Cage or screen

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


440 /   HD   MARINE PROPULSION

49  DF  SCREW PROPELLER {12}
71  DF  .~ Propeller guard {1}
72.~.~ Cage or screen

DEFINITION

Classification: 440/72

Cage or screen:

(under subclass 71) Device wherein the protecting means comprises an enclosure or a mesh surrounding the propeller.