Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1989-08-24
1992-03-24
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record medium
In container
242199, G11B 2302
Patent
active
050993780
ABSTRACT:
An interlock system for use with a two piece video cartridge/carrier video cassette for preventing insertion of the video cassette into a video tape machine, unless the tape interconnection is fully advanced onto the take-up reel.
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Heinz A. J.
Minnesota Mining and Manufacturing Company
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