Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 178/90
Name: Telegraphy > Receivers > Code recorders > Photographic
Description: Code recorders in which the record is made by photography.

Patents under this class:

Patent Number Title Of Patent Date Issued
4475115 Banding-free printing by linear array of photosources Oct. 2, 1984
4450929 Acoustic energy systems May. 29, 1984

  Recently Added Patents
Negative active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery comprising the same
Method of operating an electromechanical converter, a controller and a computer program product
Light-emitting diode devices
Auto-aligning spectroscopy system
Tie down strap hook
System and method for associating financial transaction data with user's project data
Power supply device
  Randomly Featured Patents
Utility knife
Multiple purpose electronic counting system
Superluminescent diode and method of manufacturing the same
Microfilm-unit and magnifying-glass locket
Zero-crossing correction in sinusoidally commutated motors
Process for the water vapor reforming of a hydrocarbon or a hydrocarbon derivative, reforming system operable thereby, and fuel cell operating process
Hair brush
Silver halide color photosensitive materials
Method and means for the acoustical steering of submarine torpedoes