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Class Information
Number: 33/1HH
Name: Geometrical instruments > Miscellaneous > Seismic
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6845564 |
Level monitoring sensor apparatus, solid structure sensor apparatus, and pendulum sensor apparatus |
Jan. 25, 2005 |
| 6831877 |
System and method for determining an azimuth of a seismic energy source |
Dec. 14, 2004 |
| 5801636 |
Method and apparatus for seismic tornado detection |
Sep. 1, 1998 |
| 5791058 |
Infrastructure inspection method |
Aug. 11, 1998 |
| 5451164 |
Method and system for geophysical and geologic modeling |
Sep. 19, 1995 |
| 5379025 |
Method and apparatus for seismic tornado detection |
Jan. 3, 1995 |
| 5001682 |
Method and apparatus for detecting seismic events |
Mar. 19, 1991 |
| 4768175 |
Apparatus for measuring the intensity of a seismic shock |
Aug. 30, 1988 |
| 4615022 |
Symmetrically-suspended vertical-swing long-period pendulum means |
Sep. 30, 1986 |
| 4300135 |
Seismic alarm system |
Nov. 10, 1981 |
| 3973326 |
Direct readout distance measuring device |
Aug. 10, 1976 |
| 3931609 |
Three-dimensional seismic display |
Jan. 6, 1976 |
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