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USD236381S - Ray film dupucator/subtractor unit - Google Patents

Ray film dupucator/subtractor unit Download PDF

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Publication number
USD236381S
USD236381S US D236381 S USD236381 S US D236381S
Authority
US
United States
Prior art keywords
ray film
dupucator
subtractor unit
subtractor
unit
Prior art date
Application number
Inventor
Richard L. Evenson
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0 Umted States Patent L/AB ECOPY Des. 236,381
Patented Aug. 19, 1975 X-RAY FILM DUPLICATOR/SUBTRACTOR mm m, mm- .w... m,
m Mar. 29, 1914, sq. No. 455,!
Tenn a M 14 m in. CI. DIG-04 FIG. 1 is a front perspective view of an X-ray film dupllcator/subtractor unit showing our new design; [TED FIG. 2 is a rear perspective viewlheteof; and UN STATES PATENTS FIG, 3 is a, front perspective view thereof showing t 32522391 9/1970 Bowen D61! Q lid :1 partially opened condition. 7 OTHER REFERENCES e clmm: The om m I for an xfly mm Cole-Farmer Catalog, 1968, p. 37, Scam ultnm mbh'actor unit, as shown and'deam'bed. elem JOEL IEARMAN, Primary Examiner C. A. RADEMAKER, Assistant Ellmm'

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