| |
 |
|
Class Information
Number: 33/285
Name: Geometrical instruments > Straight-line light ray type > Horizontal angle measurer
Description: Device for measuring an angle in the plane of or parallel to the horizon.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7418786 |
Marking device |
Sep. 2, 2008 |
| 7099000 |
Laser leveling apparatus |
Aug. 29, 2006 |
| 7081824 |
Track monitoring equipment |
Jul. 25, 2006 |
| 7051445 |
Apparatus generating a light illuminated line |
May. 30, 2006 |
| 7031367 |
Laser level |
Apr. 18, 2006 |
| 6996910 |
Laser leveling device for generating parallel lines |
Feb. 14, 2006 |
| 6912792 |
Apparatus for determining a level surface |
Jul. 5, 2005 |
| 6873420 |
Topographical measurement machine for bowling lanes and the like |
Mar. 29, 2005 |
| 6782034 |
Laser plumbing and leveling instrument which adjusting height of horizontal line |
Aug. 24, 2004 |
| 6710319 |
System for radiating a reference laser beam and utilizing GPS units for installing an article |
Mar. 23, 2004 |
| 6694630 |
Multiple-axis laser emitter with optical beam splitter |
Feb. 24, 2004 |
| 6679609 |
Laser beam irradiation device |
Jan. 20, 2004 |
| 6625895 |
Servo-controlled automatic level and plumb tool |
Sep. 30, 2003 |
| 6618950 |
Projection apparatus for demarcation |
Sep. 16, 2003 |
| 6487781 |
Bore path alignment system |
Dec. 3, 2002 |
| 6449856 |
Laser plumbing device, long member plumbing device and long member plumbing method |
Sep. 17, 2002 |
| 6314651 |
Rotary laser irradiating system and photodetection system |
Nov. 13, 2001 |
| 6279239 |
Device and a method for sizing odd parts of drywall for placement on ceilings and walls |
Aug. 28, 2001 |
| 6253457 |
Laser beam direction correcting optical system for a surveying instrument |
Jul. 3, 2001 |
| 6212782 |
Building line layout device |
Apr. 10, 2001 |
| 6101728 |
Versatile VH laser plumb |
Aug. 15, 2000 |
| 6082013 |
Apparatus for leveling an object |
Jul. 4, 2000 |
| 6076266 |
Theodolite with a disengageable adjustment mechanism |
Jun. 20, 2000 |
| 5987763 |
Drive device for aligning a theodolite |
Nov. 23, 1999 |
| 5887353 |
Two-speed continuous tangent screw |
Mar. 30, 1999 |
| 5782003 |
Device for projecting a flat beam of diverging laser rays |
Jul. 21, 1998 |
| 5689892 |
Two-speed continuous tangent screw |
Nov. 25, 1997 |
| 5575073 |
Apparatus for setting a horizontal plane by means of a level |
Nov. 19, 1996 |
| 5572796 |
Laser beam pendular level |
Nov. 12, 1996 |
| 5519642 |
Electronic survey instrument |
May. 21, 1996 |
| 5488777 |
Utility line angle measurement device |
Feb. 6, 1996 |
| 5450909 |
Grade determining method and apparatus |
Sep. 19, 1995 |
| 5402226 |
Survey apparatus |
Mar. 28, 1995 |
| 5269070 |
Instrument for measuring flatness or uniformity of curvature |
Dec. 14, 1993 |
| 5189799 |
Laser goniometer |
Mar. 2, 1993 |
| 4976039 |
Navigation aid |
Dec. 11, 1990 |
| 4752126 |
Surveying instrument |
Jun. 21, 1988 |
| 4656878 |
Rotation axis fine adjustment apparatus |
Apr. 14, 1987 |
| 4644659 |
Transit |
Feb. 24, 1987 |
| 4407012 |
Multi-directional light source |
Sep. 27, 1983 |
| 4302885 |
North finder with optical transfer provision |
Dec. 1, 1981 |
| 4281463 |
Rotatable disc support arrangement for angle measuring apparatus |
Aug. 4, 1981 |
| 4219939 |
Method and device for surveying the basal area of a forest stand |
Sep. 2, 1980 |
| 4057906 |
Navigational instruments |
Nov. 15, 1977 |
| 4009602 |
Tube bending tool with angle sighting means |
Mar. 1, 1977 |
| 3936947 |
Rotating arm aiming device system |
Feb. 10, 1976 |
| 3930694 |
Bearing for a vertical axle |
Jan. 6, 1976 |
|
|
|
