Follower block for a card file

Details Follower block for a card file Follower block for a card file

1977-12-01

1980-01-22

Stearman, Joel

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Element or attachment

D1999

Patent

active

D02540142

REFERENCES:
patent: 191154 (1933-05-01), Davis
patent: 1067831 (1913-07-01), More
patent: 1355257 (1920-10-01), Peel et al.
patent: 1891522 (1932-12-01), Bullock
patent: 2631590 (1953-03-01), Regenhardt

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