Patents in Class 380/213

Matches 51 - 56 out of 56

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Match	Document	Document Title
51	3330906	Radio and television operation
52	3222452	Pre-pay or subscription radio or television operations
53	2940005	Variable discontinuous interlaced scanning system
54	2857455	Subscription color television system
55	2853544	Subscription color television system
56	2813145	Subscription color television

Matches 51 - 56 out of 56

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