US PATENT SUBCLASS 244 / 68
.~.~ Elongated

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

Internet Version by PATENTEC © 1999      Terms of Use


244 /   HD   AERONAUTICS

62  DF  AIRCRAFT PROPULSION {7}
65  DF  .~ Screw {4}
68.~.~ Elongated

DEFINITION

Classification: 244/68

(under subclass 65) Arrangement of aircraft screw propellers of the long helix type, in which the blades extend for substantially a full pitch length or more along the hub members.

SEE OR SEARCH THIS CLASS, SUBCLASS:

67, for propellers of the type in this subclass (68) arranged to rotate about the external periphery of some aircraft body.

73, for propellers of the type in this subclass (68) arranged in tubes for fluid propulsion.