1 Patents
#7 in Marshalltown, IA
#873 in Iowa
#133,784 in US
Marshalltown Trowell Company
Forward Citations = 7
1 inventor:
Marshalltown, IA, United States of America
1 inventor (with patents filed for the assignee):
1 patent:
#7 in Marshalltown, IA
#873 in Iowa
#133,784 in US
1 inventor: