Leventry, Haschak, Rookey and Klementik
1 registered patent practitioners: 1 patent attorneys and 0 patent agents, Johnstown, PA.
- John M. Haschak — Patent attorney, Reg. No. 45606, Leventry, Haschak, Rookey and Klementik
1 registered patent practitioners: 1 patent attorneys and 0 patent agents, Johnstown, PA.