Title:
Chi-ray system
Document Type and Number:
United States Patent 1431578

Inventors:
Garretson, Harry D.
Publication Date:
10/10/1922
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Referenced by:
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Assignee:
Garretson, Harry D.
Primary Class:
378/197
Other Classes:
378/201, 378/194
International Classes:
H05G1/06; H05G1/00




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