Machines developed by Polygram Casting Co include those taking pattern plates up to 22 by 24 in., automatic shell core making machines, mold closing machines, etc; illustrated description. (see also Engineer v 198 n 5136 July 2 1954 p 13-4; Engineering v 178 n 4615 July 9 1954 p 54-5; Light Metals v 17 n 199 Oct 1954 p 326-7)
Shell moulding equipment
Automobile Engr
Automobile Engineer ; 44 , n 7
1954
4 pages
Aufsatz (Zeitschrift)
Englisch
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