Engineering; Powder Metallurgy.

Copyright

Complete catalog record
ENGINEERING; powder metallurgy. Audio Productions, Inc., c1945. 1 reel each. © Audio Productions, Inc. 1. Principles and Uses. © 1Aug45; MP16462. 2. Manufacture of Porous Bronze Bearings. © 1Aug45; MP16465.

Sources

  1. 16mm Filmography (legacy record) — title, year, length, catalog record, copyright