(Simplified practice recommendation R130-32.) [Title on cover is: Dental lathe grinding wheels, elimination of waste through simplified commercial practice. Recommendation became effective Jan. 1, 1932.]
Notes:
(Simplified practice recommendation R130-32.) [Title on cover is: Dental lathe grinding wheels, elimination of waste through simplified commercial practice. Recommendation became effective Jan. 1, 1932.] * For Sale by Superintendent of Documents. Paper, 5c.
Availability:
* For Sale by Superintendent of Documents. Paper, 5c.