Dental prophylaxis instrument
US D227369 S
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Description (OCR text may contain errors)
Patented June 19, 1973 DENTAL PROPHYLAXIS INSTRUMENT John R. Hedrick, La Crescenta, and George D. Peverly, Northridge, Calif., assignors to The Columbus Dental Manufacturing Company, Columbus, Ohio Filed Dec. 15, 1971, Ser. No. 208,526
Term of patent 14 years Int. Cl. D24-03 US. Cl. D24-1 D FIG. 1 is a perspective view of a dental prophylaxis References Cited instrument showing our new design; UNITED STATES PATENTS FIG. 2 is a side elevational view on a larger scale;
FIG. 3 is an end elevational view looking toward the 204547 4/1966 Trupp ct D24 1 D butt end of the instrument; and 209,585 12/1967 Koch DIM-1 B FIG. 4 is a transverse cross sectional view taken along 216981 3/1970 Trupp et D the i H of FIG D. 219,979 2/1971 COSS 1324-1 D The broken lines are shown for illustrative purposes 3,144,867 8/1964 Trupp et 128 234 at claim, BERNARD ANSHER, Primary 'Examiner The ornamental design for a dental prophylaxis instrument, substantially as shown and described.