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Class Information
Number: 33/384
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Liquid type, upper surface utilizing > Bubble > Liquid container adjustable 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 workpiece, the support being such as to provide for adjustment of the receptacle with respect to said surface.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7363719 |
Pocket level |
Apr. 29, 2008 |
| 7360317 |
Level having an adjustable mechanism for truing to acquire an exact reading |
Apr. 22, 2008 |
| 6990742 |
Wave level |
Jan. 31, 2006 |
| 6901671 |
Level capable to measure minute inclination |
Jun. 7, 2005 |
| 6782628 |
Level having rotatable vial support device |
Aug. 31, 2004 |
| 6591510 |
Method and apparatus for securing and aligning bubble vials |
Jul. 15, 2003 |
| 6477781 |
Angle spirit level device |
Nov. 12, 2002 |
| 6176020 |
Anti-thermal expansion vial mounting system |
Jan. 23, 2001 |
| 6158134 |
Equipment leveling device |
Dec. 12, 2000 |
| 6148530 |
Level with snap action vial holder |
Nov. 21, 2000 |
| 5992033 |
Shock absorbing, easily calibrated vial system for a carpenter's level |
Nov. 30, 1999 |
| 5966826 |
Dual usage level marking instrument |
Oct. 19, 1999 |
| 5755623 |
Level accessory for golf putters |
May. 26, 1998 |
| 5546670 |
Multi-purpose measuring instrument for wood working machines |
Aug. 20, 1996 |
| 5509657 |
Position indicator device for golf clubs |
Apr. 23, 1996 |
| 5444918 |
Arrangement for aligning an apparatus unit |
Aug. 29, 1995 |
| 5421094 |
Adjustable level |
Jun. 6, 1995 |
| 5359499 |
Vertical/horizontal indicator for a vehicular headlamp |
Oct. 25, 1994 |
| 5174572 |
Golf club having a position indicator mounted thereto |
Dec. 29, 1992 |
| 5103569 |
Multipurpose combination leveling tool |
Apr. 14, 1992 |
| 5063679 |
Protractor bubble level |
Nov. 12, 1991 |
| 5031081 |
Headlamp for power vehicle |
Jul. 9, 1991 |
| 5025568 |
Photographic enlarger alignment tool and method for aligning a photographic enlarger |
Jun. 25, 1991 |
| 5001838 |
Spirit level |
Mar. 26, 1991 |
| 4996777 |
Snap-in level vial cover |
Mar. 5, 1991 |
| 4989327 |
Adjustable side draft indicator |
Feb. 5, 1991 |
| 4964219 |
Combination plumb/level instrument for a try square |
Oct. 23, 1990 |
| 4932132 |
Electronic level apparatus and method |
Jun. 12, 1990 |
| 4848003 |
Positioning device |
Jul. 18, 1989 |
| 4791731 |
Vertical surface installing device |
Dec. 20, 1988 |
| 4774767 |
Water level |
Oct. 4, 1988 |
| 4635376 |
Angle measuring apparatus |
Jan. 13, 1987 |
| 4571845 |
Polycast level instruments with means for retaining level vials therein |
Feb. 25, 1986 |
| 4564322 |
Drill scope |
Jan. 14, 1986 |
| 4546549 |
Adjustable spirit level construction |
Oct. 15, 1985 |
| 4484393 |
Illuminated spirit level |
Nov. 27, 1984 |
| 4435908 |
Offset, extendable, quick-release plumbness indicating apparatus |
Mar. 13, 1984 |
| 4322890 |
Datum line gauge system |
Apr. 6, 1982 |
| D257671 |
Adjustable level |
Dec. 23, 1980 |
| 4161299 |
Aircraft performance data qualifier |
Jul. 17, 1979 |
| 4079520 |
Level bubble for a golf club |
Mar. 21, 1978 |
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