Acid engraving machine device

Details Acid engraving machine device Acid engraving machine device

1974-07-31

1976-01-27

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Differential fluid etching apparatus

With microwave gas energizing means

156 7, C23F 102

Patent

active

039350525

ABSTRACT:
An acid engraving device containing a reservoir for acid, a valve to meter the acid flow from the reservoir, and a ball point etching pen to apply acid to the work surface.

REFERENCES:
patent: 2452504 (1948-10-01), Tefft
patent: 2502866 (1950-04-01), Lust
patent: 2568803 (1951-09-01), Guenst
patent: 2578918 (1951-12-01), Boddy et al.

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