Binder device releasably engaging aperture or notch of sheet – Miscellaneous – Sheet lifters
Patent
1980-04-17
1981-04-07
Bell, Paul A.
Binder device releasably engaging aperture or notch of sheet
Miscellaneous
Sheet lifters
402 53, 402 73, 7138, B42F 1312
Patent
active
042602742
ABSTRACT:
A hollow binder for a book having removable pages such as a ledger is used for storage of threaded posts. Each of the posts are coaxial and threaded to one another. One of the posts is adapted by itself or in conjunction with other posts to be a hand tool for threading or unthreading of posts.
REFERENCES:
patent: 1416461 (1922-05-01), Hance
patent: 1731454 (1929-10-01), Dawson
patent: 2335047 (1943-11-01), Ellis
patent: 4126402 (1978-11-01), Penniman
Bell Paul A.
Brown John S.
REP Industries, Inc.
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