Keywords: USS R-7 (SS-84).jpg en wikipedia 2012 July 15 R-7 SS-84 United States Navy submarine probably just after she was launched http //www navsource org/archives/08/08084 htm Probably 5 April 1919 U S Navy photograph PD-USGov-Military-Navy Original upload log en wikipedia USS+R-7+ 28SS-84 29 jpg 2009-11-29 01 47 Mdnavman 371×221× 19182 bytes <nowiki> United States Navy submarine R-7 SS-84 probably just after she was launched http //www navsource org/archives/08/08084 htm Probably 5 April 1919 U </nowiki> __NOTOC__ Ships built in 1919 Ships built in Massachusetts Naval ships of the United States World War II submarines of the United States |