These are just a few of the ground joint flasks you can get in PYREX brand elass No 7740
4496 If you use ground joint flasks, this number has meaning for you. It represents the number of ground joint flasks made of PYREX brand glass No. 7740 listed in our catalogs. Among these thousands, you will surely find the ones you need. In these flasks you get the work qualities
and endurance
of
PYREX
brand labware. You also get joints
ground to a "satin-smooth" finish, which eliminates leak-causing irregu larities. This finish, ground to precise uni formity, is a result of extensive re search in the fields of abrasives and grinding techniques. It gives you an easy fit without looseness. Uniformly fine grinding also gives you complete interchangeability of
PYREX® laboratory ware . . . the tested tool of modern
research.
ground joints. And in vacuum work, you need only a minimum of lubricant to get the tight seal you need. If you would like to look at the as sortment of these long-lasting, super latively made flasks, you'll find them listed in our new catalogs, LP36 for standard laboratory ware and CA-2 our special glassware catalog.
C O R N I N G GLASS WORKS 7 2 - 1 0 Crystal Street, Corning, N e w York Please send me a copy o f : Catalog L P 3 6 — " L a b o r a t o r y G l a s s w a r e " • ; Catalog C A - 2 — " C u s t o m - M a d e Labora tory Glassware by C o m i n g . " Π Name
Title
Company
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