Memorandum book and sheets thereof

Details Memorandum book and sheets thereof Memorandum book and sheets thereof

1990-06-21

1991-02-19

Phan, Hien H.

Books, strips, and leaves

Book, element thereof, or accessory therefor

Leaves

281 1501, 283 6301, 283114, B42D 100

Patent

active

049937499

ABSTRACT:
In a memorandum book the sheets of which have rectangular tear out areas a frame of paper is retained around each sheet. Sheets are differently colored so that the undersheet can be recognized when an area has been removed.

REFERENCES:
patent: 329307 (1885-10-01), Gerhard
patent: 672171 (1901-04-01), Kittredge
patent: 814699 (1906-03-01), Hoey
patent: 1043511 (1912-11-01), Davidson
patent: 1199170 (1916-09-01), Friend
patent: 1462683 (1923-07-01), Bush et al.
patent: 1927266 (1933-09-01), Huttner
patent: 2058035 (1936-10-01), Rand
patent: 2687902 (1954-08-01), Becker
patent: 3517947 (1970-06-01), Bennett
patent: 4334771 (1982-06-01), Ryan, Jr.

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