US Patent Class 116
SIGNALS AND INDICATORS-- Main Headings



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Current as of: June, 1999
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CLASS NOTES
1  DF  MISCELLANEOUS
2  DF  COMBINED FUNCTIONS {3}
18  DF  CODE SIGNALING {2}
21  DF  SHIP'S TELEGRAPHS
22 R  DF  PERIODIC {4}
26  DF  NAUTICAL {1}
28 R  DF  VEHICLE {12}
63 R  DF  STREET TRAFFIC {1}
64  DF  ELEVATOR
67 R  DF  ALARMS {15}
200  DF  INDICATORS {32}
137 R  DF  HORNS, WHISTLES AND COMPRESSIONAL WAVE GENERATORS {6}
147  DF  SIRENS
148  DF  BELLS {10}
173  DF  FLAGS AND FLAGSTAFFS {2}
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DIGESTS
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DIG 1  DF  Combined with diverse elements
DIG 2  DF  Corrections by cursor lines
DIG 3  DF  Shiftable indicia
DIG 4  DF  Variable pulley
DIG 5  DF  Using light guides
DIG 6  DF  Pointer structure
DIG 7  DF  Fluid actuated
DIG 8  DF  Inflatable indicator
DIG 9  DF  Balloons
DIG 10  DF  Bimetal detents
DIG 11  DF  On ski binders
DIG 12  DF  Door knockers
DIG 13  DF  Inclinometers for earth working devices
DIG 14  DF  Tapes as carriers
DIG 15  DF  Projection
DIG 16  DF  Road structure
DIG 17  DF  Tactile
DIG 18  DF  Wave generators
DIG 19  DF  Wave generator with resonating element
DIG 20  DF  Automobile transmission position
DIG 21  DF  Shaft position indicators
DIG 22  DF  Heated air
DIG 23  DF  Movable index
DIG 24  DF  With suction cups
DIG 25  DF  Air filter condition indicator
DIG 26  DF  Light rod
DIG 27  DF  Blowout plates
DIG 28  DF  Push button structure
DIG 29  DF  TV tuner
DIG 30  DF  Remote TV tuner
DIG 31  DF  TV channel selector
DIG 32  DF  Content indicator by weight
DIG 33  DF  Indicator for elevated cables
DIG 34  DF  Tension indicating
DIG 35  DF  Electroluminescent dials
DIG 36  DF  Illuminated dial and pointer
DIG 37  DF  Multiple movable scales
DIG 38  DF  Hot box alarm
DIG 39  DF  Dial magnifiers
DIG 40  DF  Flare devices
DIG 41  DF  Color comparison
DIG 42  DF  Oil filter
DIG 43  DF  Navigation devices
DIG 44  DF  Portable personal alarms
DIG 45  DF  Parallax
DIG 46  DF  Interchangeable scales
DIG 47  DF  Scale conversion, e.g., English-Metric