Expandable and expanded plastic materials and methods for casting metal castings employing such expanded cellular plastic materials
A Standard patent application filed on 11 February 1988 credited to Johnson, David Richard
;
Moll, Norman Glenn
Details
Application number :
11635
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Expandable and expanded plastic materials and methods for casting metal castings employing such expanded cellular plastic materials