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Class Information
Number: 33/382
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Liquid type, upper surface utilizing > Bubble > Plural > Coacting at an angle
Description: Device wherein the two nearly filled receptacles are so related that they function simultaneously and at an angle to each other, thus determining two horizontal lines which in turn determine a horizontal plane.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6963284 |
Level for indicating object tilt along user line of sight |
Nov. 8, 2005 |
| 6915588 |
Spirit level |
Jul. 12, 2005 |
| 6915586 |
Box level |
Jul. 12, 2005 |
| 6836973 |
Versa level |
Jan. 4, 2005 |
| 6792686 |
Level |
Sep. 21, 2004 |
| 6760975 |
Vial holding level |
Jul. 13, 2004 |
| 6748665 |
Illuminated spirit level |
Jun. 15, 2004 |
| 6675490 |
Level |
Jan. 13, 2004 |
| 6640456 |
Level with attachments |
Nov. 4, 2003 |
| 6625895 |
Servo-controlled automatic level and plumb tool |
Sep. 30, 2003 |
| 6568095 |
Magnetic torpedo level |
May. 27, 2003 |
| 6434848 |
Template for scribbing electrical box openings for old work |
Aug. 20, 2002 |
| 6332277 |
Level with securing apparatus |
Dec. 25, 2001 |
| 6243957 |
Insert molding of a liquid-containing member, such as a level vial, and an article of manufacture formed thereby |
Jun. 12, 2001 |
| 6209211 |
Spirit level with multiple bubble vials |
Apr. 3, 2001 |
| 6029360 |
Multi-angle pocket level |
Feb. 29, 2000 |
| 6029359 |
Post, pipe, and sign level |
Feb. 29, 2000 |
| 5996238 |
Right hand level holder |
Dec. 7, 1999 |
| 5784794 |
Sensing device |
Jul. 28, 1998 |
| 5755037 |
Level |
May. 26, 1998 |
| 5685083 |
Combination plumb and level device |
Nov. 11, 1997 |
| 5509210 |
Multiple position level |
Apr. 23, 1996 |
| 5408752 |
Plumb tool kit attachable to the ends of a common level, or the like, used to determine vertical alignment |
Apr. 25, 1995 |
| 5406714 |
Level vial assembly |
Apr. 18, 1995 |
| 5388337 |
Angle orienting level apparatus |
Feb. 14, 1995 |
| 5326096 |
Golf putting aid |
Jul. 5, 1994 |
| 5309645 |
Combination plumb or level and height setting instruments |
May. 10, 1994 |
| 5279041 |
Level straight-edge apparatus and method of construction |
Jan. 18, 1994 |
| 5235755 |
Angle finding device |
Aug. 17, 1993 |
| 5208990 |
Masonry level apparatus |
May. 11, 1993 |
| 5207004 |
Post level |
May. 4, 1993 |
| 5153999 |
Auto level cradle |
Oct. 13, 1992 |
| 5031329 |
Digital level with plumb |
Jul. 16, 1991 |
| 4979310 |
Composite level including an indexing system for aligning the frame with the cover plates |
Dec. 25, 1990 |
| 4977680 |
Loft indicator and lie detector for golf club heads |
Dec. 18, 1990 |
| 4976040 |
Post level apparatus |
Dec. 11, 1990 |
| 4947556 |
Plumber's level |
Aug. 14, 1990 |
| 4944094 |
Picture frame leveling tool |
Jul. 31, 1990 |
| 4928395 |
Extensible level |
May. 29, 1990 |
| 4912854 |
Cross vial liquid bubble illuminated level |
Apr. 3, 1990 |
| 4693011 |
Apparatus for establishing angles of objects |
Sep. 15, 1987 |
| D288541 |
Four way corner level |
Mar. 3, 1987 |
| 4545129 |
Multiposition level |
Oct. 8, 1985 |
| 4531301 |
Two-way level |
Jul. 30, 1985 |
| 4470199 |
Method and apparatus for aligning aircraft instruments bearing platforms |
Sep. 11, 1984 |
| 4432146 |
Integrated drill leveling apparatus |
Feb. 21, 1984 |
| 4168578 |
Four way corner level |
Sep. 25, 1979 |
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