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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

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