United States Patent: 3277421 ( 1

Issue Date:

Patent Grant 3277421

U.S. patent number [Application Number ] was granted by the patent office on 1966-10-04 for united states patent: 3277421 ( 1.


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United States Patent 3,277,421
Issue Date: October 4, 1966
Current U.S. Class: 439/289; 213/1.3; 439/887; 439/733.1; 439/901
Current CPC Class: B61G 5/10 (20130101); Y10S 439/901 (20130101)
Current International Class: B61G 5/10 (20060101); B61G 5/00 (20060101)


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