Three-leaf folder

Details Three-leaf folder Three-leaf folder

1992-03-12

1993-11-16

Burke, Wallace R.

Office supplies; artists and teachers materials

Book, album or cover

Patent

active

D03413730

REFERENCES:
patent: D135393 (1943-03-01), Weinger et al.
patent: D283231 (1986-04-01), Bradenburger
patent: D302830 (1989-08-01), Popat et al.
patent: 1684737 (1928-09-01), L'Enfant
patent: 2788041 (1957-04-01), Carver
patent: 4890728 (1990-01-01), Grimsley

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