Some things that interest me about this humble document are:
It dates from 1977, three years before Sachs bought the Huret company. These are derailleurs manufactured by Huret and branded up for Sachs.
The total capacity of the Sachs-Sport derailleur is given as 27 teeth. Huret generally claimed that their identical Huret Eco had a total capacity of 31 teeth - which is a big difference.
The derailleur is claimed to be suitable for 3 to 6 speed rear freewheels - a somewhat odd claim for 1977, when nearly all bicycle freewheels were either 5 or 6 speed. I think this is because Sachs also used the Sachs-Sport derailleur on their Saxonette Mopeds - which had three speed freewheels.