Printing and office machinery – Typewriter or calculator – Element or attachment
Patent
1988-08-02
1991-01-01
Holtje, Nelson C.
Printing and office machinery
Typewriter or calculator
Element or attachment
Patent
active
D03134253
REFERENCES:
patent: D303396 (1989-09-01), Smith
patent: 4388006 (1983-06-01), Waibel
patent: 4415285 (1983-11-01), Bury
Holtje Nelson C.
Kaplan Blum
Seiko Epson Corporation
Vegnan Caron D.
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