K-D Manufacturing Company
K-D Manufacturing Co. was founded in 1919 in Lancaster, PA as a partnership between Harry W. Kulp and Martin C. Dellinger. Pennsylvania, a History of Lancaster County gives insight into the company's beginnings. Their first product(s) were valve spring tools resulting from multiple Kulp/Dellinger patents.
K-D was officially registered as a corporation on 1/1/1923 according to PA state records which can be searched here. Oddly enough, the 3/28/1934 edition of the The Evening News (Harrisburg, PA) announces the incorporation of K-D. Officers mentioned were H. W. Kulp, M. C. Dellinger and I. E. Dellinger. The capital stock was noted as $200,000.
In 1957, the owners of K-D were bought out by Mr. George W. Marshall, Jr., as noted in Automotive News, Volumes 31-32 (not legible in link). Mr. Kulp's obituary (newspapers.com account required) from 1962 confirms the sale of assets but again makes no mention of the purchasers.
In 1967, K-D moved into a new factory and acquired the L. O. Beard Tool Co., also of Lancaster, PA.
The 10/7/1969 edition of The Press Gazette (Hillsboro, OH) announces the acquisition of MECTO Corp. by K-D. The president of K-D noted is C. Paul Myers who incidentally, is the son-in-law of George W. Marshall, Jr..
According to Moody's Industrial, K-D was acquired by Easco on January 28, 1982.
As reported in the 5/25/1962 edition of The Lebanon Daily News, Harry Kulp died on the day prior. Among the citations in his obituary are secretary-treasurer and co-founder of K-D Manufacturing Co. and president of Kulp and Dellington, Inc. His obituary also notes that he sold his interest in both concerns in 1957.