Search Results for: Alpha beta gamma radiations apparatus
(class / ) with remote control (class / ) video apparatus for performing simultaneous recording and reproducing operations (e.g., double-tape decks, etc.)
(class / ) video tape recording or reproducing (e.g., vcr, vtr, beta, vhs, mm (i.e., sequential r and r), etc.) (class / ) stationary head (class / ) helical scanning (i.e., rotating heads) (class / ) with hi-fi audio (e.g., surround, .x, etc.)...
https://patents.justia.com/patents-by-us-classification/386