Patent 2921141 - 2921141

United States Patent

Patent Number 2,921,141

Issue Date:

Issued January 12, 1960

Current U.S. Class:	340/745
Current International Class:	H04B05/04 (20060101)
Current CPC Class:	H04B 5/0093 (20130101); H04B 5/06 (20130101)

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