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Class Information
Number: 33/281
Name: Geometrical instruments > Straight-line light ray type > Vertical and horizontal angle measurer
Description: Device for measuring both an angle which is in a plane perpendicular to the plane of the horizon and an angle which is in the plane of or parallel to the horizon.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7454839 |
Portable reference laser unit and attachment accessory |
Nov. 25, 2008 |
| 7411512 |
Tracking the geographic location of an animal |
Aug. 12, 2008 |
| 7392591 |
Light line generating assembly |
Jul. 1, 2008 |
| 7181853 |
Modular laser layout system |
Feb. 27, 2007 |
| 7134212 |
Laser level |
Nov. 14, 2006 |
| 7124513 |
Three way laser indicator |
Oct. 24, 2006 |
| 7059057 |
Laser level |
Jun. 13, 2006 |
| 7040030 |
Laser centering device |
May. 9, 2006 |
| 7031367 |
Laser level |
Apr. 18, 2006 |
| 6938350 |
Apparatus for producing a reference plane |
Sep. 6, 2005 |
| 6922901 |
Light leveling device having remote control |
Aug. 2, 2005 |
| 6920394 |
Method and apparatus for determining the elevation of an underground structure |
Jul. 19, 2005 |
| 6892463 |
Laser beam module for simultaneously producing two mutually perpendicular optical planes |
May. 17, 2005 |
| 6871408 |
Manual leveling rotating laser with swivel head |
Mar. 29, 2005 |
| 6829834 |
Multi-angle self-leveling line generation |
Dec. 14, 2004 |
| 6782034 |
Laser plumbing and leveling instrument which adjusting height of horizontal line |
Aug. 24, 2004 |
| 6754969 |
Self-leveling constructional laser |
Jun. 29, 2004 |
| 6729589 |
Kinematic mount |
May. 4, 2004 |
| 6722048 |
Laser projection apparatus for point and line |
Apr. 20, 2004 |
| 6718643 |
Laser line beam emitting apparatus having functions of emission of a straight laser line beam therefrom into the area at the wide-angle, and a method thereof |
Apr. 13, 2004 |
| 6694630 |
Multiple-axis laser emitter with optical beam splitter |
Feb. 24, 2004 |
| 6688011 |
Modular laser system for level determination |
Feb. 10, 2004 |
| 6688009 |
Laser survey instrument |
Feb. 10, 2004 |
| 6640453 |
Clinometer |
Nov. 4, 2003 |
| 6594910 |
Apparatus for and a method of providing a reference point or line |
Jul. 22, 2003 |
| 6591218 |
Process for determining the alignment of a cylindrical body with respect to a reference direction |
Jul. 8, 2003 |
| 6568094 |
Compact optical calibrating apparatus for multiple orientations |
May. 27, 2003 |
| 6453569 |
Surveying instrument and plumbing device for plumbing surveying instrument |
Sep. 24, 2002 |
| 6449856 |
Laser plumbing device, long member plumbing device and long member plumbing method |
Sep. 17, 2002 |
| 6430823 |
Datum plane setting device |
Aug. 13, 2002 |
| 6354011 |
Orientation measuring device |
Mar. 12, 2002 |
| 6332276 |
Articulate laser degree finder |
Dec. 25, 2001 |
| 6253457 |
Laser beam direction correcting optical system for a surveying instrument |
Jul. 3, 2001 |
| 6195615 |
Method of mutually aligning bodies and position-measuring sensor therefor |
Feb. 27, 2001 |
| 6101728 |
Versatile VH laser plumb |
Aug. 15, 2000 |
| 6076266 |
Theodolite with a disengageable adjustment mechanism |
Jun. 20, 2000 |
| 6073353 |
Laser leveling device |
Jun. 13, 2000 |
| 6035540 |
Automatic optical levelling, plumbing, and verticality-determining apparatus |
Mar. 14, 2000 |
| 6012229 |
Combined leveling device and laser pointer |
Jan. 11, 2000 |
| 5992029 |
Automatic laser plumb line |
Nov. 30, 1999 |
| 5991706 |
Electronic measuring apparatus |
Nov. 23, 1999 |
| 5987763 |
Drive device for aligning a theodolite |
Nov. 23, 1999 |
| 5930904 |
Catenary system measurement apparatus and method |
Aug. 3, 1999 |
| 5907907 |
Laser leveling system |
Jun. 1, 1999 |
| 5887353 |
Two-speed continuous tangent screw |
Mar. 30, 1999 |
| 5819424 |
Laser leveling device |
Oct. 13, 1998 |
| 5689892 |
Two-speed continuous tangent screw |
Nov. 25, 1997 |
| 5539990 |
Three-dimensional optical levelling, plumbing and angle-calibrating instrument |
Jul. 30, 1996 |
| 5531031 |
Laser level and square |
Jul. 2, 1996 |
| 5519942 |
Levelling and transit system |
May. 28, 1996 |
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