US Patent Class 244
AERONAUTICS-- Main Headings




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Current as of: June, 1999
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CLASS NOTES
1 R  DF  MISCELLANEOUS {3}
2  DF  COMPOSITE AIRCRAFT {1}
3.1  DF  MISSILE STABILIZATION OR TRAJECTORY CONTROL {4}
158 R  DF  SPACECRAFT {6}
4 R  DF  AIRCRAFT, HEAVIER-THAN-AIR {14}
24  DF  AIRCRAFT, LIGHTER-THAN-AIR {7}
34 R  DF  AIRCRAFT SUSTENTATION {2}
50  DF  AIRCRAFT PROPULSION AND STEERING ON LAND OR WATER
51  DF  AIRCRAFT, STEERING PROPULSION {1}
53 R  DF  AIRCRAFT POWER PLANTS {9}
62  DF  AIRCRAFT PROPULSION {7}
75 R  DF  AIRCRAFT CONTROL {8}
100 R  DF  LANDING GEAR {8}
110 R  DF  RETARDING AND RESTRAINING DEVICES {11}
114 R  DF  LANDING FIELD ARRANGEMENT {2}
117 R  DF  AIRCRAFT STRUCTURE {14}
138 R  DF  SAFETY LOWERING DEVICES {4}
153 R  DF  KITES {3}
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CROSS-REFERENCE ART COLLECTIONS
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900  DF  LIGHTWEIGHT, WINGED, AIR VEHICLE (E,G,. ULTRALIGHT or HANG GLIDER) {4}
905  DF  INFLATABLE EVACUATION SLIDE