Hercules Inc. - the manufacturer of rocket motors and aerospace materials - has joined the ranks of numerous defense contractors that have received subpoenas for information in the defense contractors bribery scandal.

Local Hercules spokesman Ted H. Olsen said his corporate headquarters in Wilmington, Del., issued a statement that the company was subpoenaed Friday for information about contracts with defense consultants Melvyn R. Paisley and William Galvin - who have been key targets of investigations so far.The statement said Hercules had two consulting agreements with companies owned by Galvin to help with marketing and with business and strategy planning.

The statement said, "Hercules has not engaged in any improper conduct and is fully cooperating with the government investigation."