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Class Information
Number: 33/396
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Pendulum > Liquid buoyed
Description: Device wherein the body is supported, partially or wholly, by a liquid.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6779276 |
Level system |
Aug. 24, 2004 |
| 6505409 |
Inclinometer |
Jan. 14, 2003 |
| 6073354 |
Plumb laser beam generator with floating telescope |
Jun. 13, 2000 |
| 5765290 |
Adaptable tip sensor |
Jun. 16, 1998 |
| 5509209 |
Laser plumbing device |
Apr. 23, 1996 |
| 5467533 |
Night vision inclinometer |
Nov. 21, 1995 |
| 5450676 |
Slope angle and level indicator apparatus |
Sep. 19, 1995 |
| 5201129 |
Vertical indicator unit |
Apr. 13, 1993 |
| 5134883 |
Pendulum-type accelerometer |
Aug. 4, 1992 |
| 5088204 |
Level sensing unit and a level indicating device based thereon |
Feb. 18, 1992 |
| 5042158 |
Inclination sensor |
Aug. 27, 1991 |
| 4914823 |
Float biased level apparatus |
Apr. 10, 1990 |
| 4897824 |
Sonar systems |
Jan. 30, 1990 |
| 4876799 |
Level sensing unit and a level indicating device thereon |
Oct. 31, 1989 |
| 4843725 |
Gravity-biased level apparatus |
Jul. 4, 1989 |
| 4827624 |
Electronic level |
May. 9, 1989 |
| 4694584 |
Reduced volume digital inclinometer |
Sep. 22, 1987 |
| 4614041 |
Magnetic angular position sensor |
Sep. 30, 1986 |
| 4606133 |
High resolution digital inclinometer |
Aug. 19, 1986 |
| 4590681 |
Level based on moire effect with ambient light |
May. 27, 1986 |
| 4517750 |
Vertical indicating method and device |
May. 21, 1985 |
| 4451991 |
Vertical indicating method and device |
Jun. 5, 1984 |
| 4163325 |
Verticality sensors |
Aug. 7, 1979 |
| 4099334 |
Dip angle data transmitter |
Jul. 11, 1978 |
| 4096638 |
Pendulum |
Jun. 27, 1978 |
| 4063366 |
Grade level |
Dec. 20, 1977 |
| 4034481 |
Instrument which is sensitive to accelerations |
Jul. 12, 1977 |
| 4027399 |
Positional sensing |
Jun. 7, 1977 |
| 3945391 |
Float controlled hydraulic leveler |
Mar. 23, 1976 |
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