Tools and hardware – Other tools and implements – Can or bottle opener
Patent
1982-06-07
1985-01-15
Ansher, Bernard
Tools and hardware
Other tools and implements
Can or bottle opener
81 34, 7151
Patent
active
D02771608
REFERENCES:
patent: D208875 (1967-10-01), Fiegel
patent: D218674 (1970-09-01), Ernest
patent: D261854 (1981-11-01), Nielsen
patent: D271817 (1983-12-01), Collin
patent: 1919866 (1933-07-01), Schacht
patent: 3225714 (1965-12-01), Gaskell
patent: 3812741 (1974-05-01), Heine
patent: 4337678 (1982-07-01), Mumford
patent: 4414865 (1983-11-01), Brooks et al.
The Fasteners Book, 9-1960, p. 122, Items "Esna Double/Durability Nut" & Esna Lightweight Locknut.
Ansher Bernard
Pfeffer Terry
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