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Class Information
Number: 33/389
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Liquid type, upper surface utilizing > Bubble > Bubble-position indicia on reference-surface section
Description: Device wherein the nearly filled receptacle is supported by a member having a surface of reference, usually adapted to be placed against a work piece, the member having thereon indicia for cooperating with the bubble to indicate the position thereof with respect to the reference surface.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7254920 |
Tile-leveling device |
Aug. 14, 2007 |
| 7152335 |
Omnidirectional torpedo level having magnetic mounts and adjustable protractor |
Dec. 26, 2006 |
| 7086167 |
Overmolded vial for use with a level |
Aug. 8, 2006 |
| 6779276 |
Level system |
Aug. 24, 2004 |
| 6681494 |
Bubble level |
Jan. 27, 2004 |
| 6599045 |
Height measuring level pen/pencil |
Jul. 29, 2003 |
| 5887783 |
Level-indicating pizza box |
Mar. 30, 1999 |
| 5778544 |
Combined right-hand/left-hand horizontal headlamp indicator device |
Jul. 14, 1998 |
| 5604987 |
Laser level, accessories and method of use |
Feb. 25, 1997 |
| 5492322 |
Green reader device |
Feb. 20, 1996 |
| 5403001 |
Golf putting aid device and chart |
Apr. 4, 1995 |
| 5359499 |
Vertical/horizontal indicator for a vehicular headlamp |
Oct. 25, 1994 |
| 5233760 |
Angular measuring mechanism |
Aug. 10, 1993 |
| 5003699 |
Level vial with extender pitch range |
Apr. 2, 1991 |
| 4934706 |
Combination lie and shaft position indicator |
Jun. 19, 1990 |
| 4559714 |
Pitch measuring apparatus |
Dec. 24, 1985 |
| 4482155 |
Golf club alignment indicator apparatus |
Nov. 13, 1984 |
| 4422243 |
Dual axis capacitive inclination sensor |
Dec. 27, 1983 |
| 4419833 |
Composite level construction |
Dec. 13, 1983 |
| 4347088 |
Bubble tubes for spirit levels |
Aug. 31, 1982 |
| 4139287 |
Projector leveling and focusing aid and method of using same |
Feb. 13, 1979 |
| 4100681 |
Picture frame leveling device |
Jul. 18, 1978 |
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