Protective sheet for cassette holding magnetic recording tape

Details Protective sheet for cassette holding magnetic recording tape Protective sheet for cassette holding magnetic recording tape

1981-05-14

1983-09-13

Hess, Bruce H.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

360134, 427189, 427191, 427192, 427197, 427201, 428143, 428148, 428149, 428204, 428207, 428212, 428238, 428331, 428692, 428694, B32B 300, B32B 2714, G11B 578

Patent

active

044042450

ABSTRACT:
A protective sheet for a cassette holding a magnetic recording tape comprises a transparent base which is coated with a hardened surface layer formed by bonding hard fine particles with a binder.

REFERENCES:
patent: 3561337 (1971-02-01), Mulkey
patent: 3770478 (1973-11-01), Bishop
patent: 3887744 (1975-06-01), Tomita et al.
patent: 4146031 (1979-03-01), Fujiyama et al.
patent: 4302523 (1981-11-01), Audran et al.

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