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1 Ueeml*r 23, 1970 llrrold F. Busch ^oject Di^lneer o Corning: Corporation HidltnC, Uichics n 48-1)43 r-eer Ur. Busch: Pith raferenco to your letter of noceaberd, e are presently workin" on the development of an ssbestoefree Cslsllite, (calcium eillcate). The arterial is now being tested to deternlne confornance to verious specifications. It is likely that in the near futura, astoris1 will be ready for application. *Very truly yours, R~;i:hk R. V. ILmry, Market ins Manager Insulation k Construction Products Industrial Products Division | i t I ` qT-D'2^955S MICH01228