(Simplified practice recommendation R106-30.) [Title on cover is: Hospital plumbing fixtures, elimination of waste through simplified commercial practice. Recommendation became effective Jan. 2, 1930.]
Notes:
(Simplified practice recommendation R106-30.) [Title on cover is: Hospital plumbing fixtures, elimination of waste through simplified commercial practice. Recommendation became effective Jan. 2, 1930.] * For Sale by Superintendent of Documents. Paper, 10c.
Availability:
* For Sale by Superintendent of Documents. Paper, 10c.