Holder for writing instruments

Details Holder for writing instruments Holder for writing instruments

1991-06-05

1993-01-26

Holtje, Nelson C.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D19 81, D19 77, D19 97

Patent

active

D03328023

REFERENCES:
patent: D26350 (1896-11-01), Arkin
patent: D28896 (1898-06-01), Comstock
patent: D51408 (1917-10-01), Borland
patent: D52295 (1918-10-01), Weeks
patent: D223482 (1972-04-01), Mehl
patent: D267332 (1982-12-01), Pirovano et al.
patent: D270845 (1983-10-01), Hansen
patent: 548646 (1895-10-01), Lowry
patent: 954651 (1910-04-01), Shatzer
patent: 2185086 (1939-12-01), Janke
patent: 2518401 (1950-08-01), Thompson
patent: 2605907 (1952-08-01), Hirst
Springs & Formed Wires .COPYRGT.1949 See p. 2, circled spring.

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