The story of the trademark change from Interarmco to Interarms has an interesting history. After the assassination of JFK, anything having to do with guns was considered evil in some powerful and wealthy circles, not just the left wing. In that group were people associated with the steel company ARMCO. Eager to strike at any gun company (or at least any gun company that didn't use their steel), they claimed to have noticed for the first time that the trademark of the Alexandria, VA, gun importing company contained their own trademark and, using some stretching of a point, claimed that this would create public confusion and, they told the press, bring ARMCO into disrepute. So they filed suit in federal court. The full story is pretty well told here:
http://www.leagle.com/decision/19661...FSupp954_11030
As an interesting footnote, ARMCO is now owned by AK Steel, whose initials are more commonly associated with a gun than "Interarmco" ever was.
JK