Apparatus for making plastic molds

Details Apparatus for making plastic molds Apparatus for making plastic molds

1996-07-29

1997-04-15

Mackey, James P.

Plastic article or earthenware shaping or treating: apparatus

Means forming a mold; or flask, per se

249134, 425542, 425808, B29D 1100

Patent

active

056207174

ABSTRACT:
An improved method for forming plastic molds for casting articles having an optical surface such as contact lenses employs a plastic tool having an optically smooth surface.

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