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Class Information
Number: 33/1DD
Name: Geometrical instruments > Miscellaneous > Light direction
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7305983 |
Assessment of solar energy potential on existing buildings in a region |
Dec. 11, 2007 |
| 6523270 |
Universal heliodon-sundial |
Feb. 25, 2003 |
| 5742387 |
Laser beam levelling device and process for operating a laser beam levelling device and associated contrivance |
Apr. 21, 1998 |
| 5610711 |
Remote pointing system for a self-leveling laser instrument |
Mar. 11, 1997 |
| 5274926 |
Antenna aiming instrument |
Jan. 4, 1994 |
| 4635371 |
Device to indicate solar exposure |
Jan. 13, 1987 |
| 4457296 |
Heating model |
Jul. 3, 1984 |
| 4288922 |
Device to indicate solar exposure |
Sep. 15, 1981 |
| 4237611 |
Solar shadowscope |
Dec. 9, 1980 |
| 4236313 |
Apparatus for and method of evaluating solar exposure |
Dec. 2, 1980 |
| 4177566 |
Insolation survey device |
Dec. 11, 1979 |
| 4159576 |
Radiation shadow indicator |
Jul. 3, 1979 |
| 4136397 |
Astronomical timepiece |
Jan. 23, 1979 |
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