Volvo Construction Equipment modelyear history:

1832-1932 Munktells Mekaniska Verkstad
1844-1932 Bolinders
1932-1950 Bolinder-Munktell
1950-1971 BM Volvo
1972-1995 Volvo BM
1995 and on is Volvo (some vehicles carried the Volvo BM badge up until 1997)

According to http://en.wikipedia.org/wiki/Volvo_BM it changed to Volvo Construction Equipment in 1995 (so just Volvo as make)
But as Owlman said, before that they were Volvo BM.

It depends on the year... they were Volvo BM from 1973(?) until the late 90's? Then just Volvo afterward. I don't know the years. I'm sure you'll do some research on it

noticed a possible problem for the Volvo construction vehicles

some are listed with make Volvo BM while other like this just as Volvo
http://www.imcdb.org/vehicles.php?resultsStyle=asImages&yearFrom=&yearTo=&makeMatch=- 2&make=volvo&modelMatch=1&model=&modelInclModel=on&modelInclChassis=on&class106=- 106&origin=&madein=&madefor=&role=


how should it be correct then ?