Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1991-12-04
1993-08-03
Zimmerman, John
Dynamic magnetic information storage or retrieval
Record medium
In container
369291, 206444, G11B 2303
Patent
active
052334945
ABSTRACT:
A disk cassette with shutter, the shutter comprising a pair of respective shutter plates and a connecting plate, for connecting the pair of shutter plates, and the shutter shaped substantially into a U-form in section. An inward concave portion is provided in each of at least one of the respective shutter plates near and along a curved corner that is formed between the connecting plate and the respective shutter plate.
REFERENCES:
patent: 1229312 (1917-06-01), Newhouse
patent: 2102936 (1937-12-01), Bailey
patent: 2119999 (1938-06-01), Nae,uml/e/ der
patent: 2600980 (1952-06-01), Eyre
patent: 4648714 (1987-10-01), Sugawara et al.
patent: 5012913 (1991-06-01), Overland
patent: 5036421 (1991-07-01), Kaneda et al.
patent: 5077625 (1991-12-01), Shiba et al.
patent: 5140490 (1992-08-01), Fujita et al.
Sony Corporation
Zimmerman John
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