Binder device releasably engaging aperture or notch of sheet – Sheet
Patent
1980-03-14
1982-02-16
Bell, Paul A.
Binder device releasably engaging aperture or notch of sheet
Sheet
11 1R, 281 38, 283 66R, B42D 500, B42D 1202
Patent
active
043156975
ABSTRACT:
This invention relates to the field of bookkeeping equipment and specifically to the area of modular fiscal year account books, wherein the user is provided with a self contained account ledger insert, which will accommodate all of the entries for a fiscal year, and will contain a complete record of business transactions for auditing and accounting purposes.
REFERENCES:
patent: 663639 (1900-12-01), Rand
patent: 1127051 (1915-02-01), McCormick
patent: 1349577 (1920-08-01), Nankervis
patent: 1571299 (1926-02-01), Pitt
patent: 1910324 (1933-05-01), Dawson
patent: 2065324 (1936-12-01), Brisendine
patent: 2192268 (1940-03-01), Lane et al.
patent: 2869898 (1959-01-01), Martin
patent: 3092401 (1963-06-01), Steidinger
patent: 3706626 (1972-12-01), Smith et al.
patent: 4214029 (1980-07-01), Barnes
Bell Paul A.
Brown John S.
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