(Simplified practice recommendation R108-29.) [Title on cover is: Dental hypodermic needles, elimination of waste through simplified commercial practice. Recommendation became effective Oct. 1, 1929.]
Notes:
(Simplified practice recommendation R108-29.) [Title on cover is: Dental hypodermic needles, elimination of waste through simplified commercial practice. Recommendation became effective Oct. 1, 1929.] * For Sale by Superintendent of Documents. Paper, 5c.
Availability:
* For Sale by Superintendent of Documents. Paper, 5c.