2 Patents
#248 in Columbus, OH
#3,555 in Ohio
#92,551 in US
Columbia Gas Service System Corporation
Forward Citations = 15
1 inventor:
Columbus, OH, United States of America
1 inventor (with patents filed for the assignee):
2 patents:
#248 in Columbus, OH
#3,555 in Ohio
#92,551 in US
1 inventor: