Sheet lifter for a ring binder

Details Sheet lifter for a ring binder Sheet lifter for a ring binder

1996-01-29

1997-11-25

Lucas, Susan J.

Office supplies; artists and teachers materials

Book, album or cover

Element or attachment

1904

Patent

active

D03867862

REFERENCES:
patent: D159472 (1950-08-01), Cleiff
patent: D261008 (1981-09-01), Mizejewski
patent: D309155 (1990-07-01), Hing
patent: 3758219 (1973-09-01), Stasio et al.
patent: 3809485 (1974-05-01), Beyer
patent: 3936201 (1976-02-01), Kenny et al.
patent: 3975105 (1976-08-01), Cline
patent: 4573822 (1986-03-01), Allen
Andrews Office Products, 1989. p. 285. Element a Sheet Lifter.

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