INVESCO VAN KAMPEN GROWTH INCOME FUND MUTUAL FUNDS USMF - What does INVESCO VAN KAMPEN GROWTH INCOME FUND MUTUAL FUNDS USMF mean? - What does INVESCO VAN KAMPEN GROWTH INCOME FUND MUTUAL FUNDS USMF stand for? - INVESCO VAN KAMPEN GROWTH INCOME FUND MUTUAL FUNDS USMF meaning