US PATENT SUBCLASS 65 / 301
.~ With selective control means

Current as of: June, 1999
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65 /   HD   GLASS MANUFACTURING

300  DF  MEANS APPLYING PNEUMATIC PRESSURE INSIDE OF DISCRETE CHARGE (I.E., BLOW MEANS) {1}
301.~ With selective control means

DEFINITION

Classification: 65/301

(under subclass 300) Apparatus in combination with means to selectively control the ballooning.