Engraving machine

Printing and office machinery – Printing equipment – Element or attachment

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409 91, 409134

Patent

active

D03509826

REFERENCES:
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patent: 3203316 (1965-08-01), Cashman et al.
patent: 3858743 (1958-11-01), Sallwey
patent: 3927599 (1975-12-01), Raymond
patent: 5100270 (1992-03-01), Dowdle et al.

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