number of class vs number of classes

Some examples from the web:

• ensuring their continued experience by performing an adequate number of class 1 medical examinations every year.
• Given that the number of class members could be in the millions, damages could total billions of dollars.
• This Regulation contains standardised disclosure templates for a number of asset class categories.
• My own country, Scotland, is home to a number of world class financial companies and they can benefit from access across the internal market.
• I believe that an inspectorate operating in a vacuum, as Mr Bösch called it, can indeed be successful if it is endowed with a sufficient number of first-class personnel.
• Mr President, past years have seen a relatively large number of middle class people falling for the attractions of financial instruments, the use of which was formerly reserved for a very small elite.
• For this, you have to select the number of the class and subclass you want to add and enter the terms in the text box manually.
• KDE recognises the fact that a computing platform is only as good as the number of first class applications available to the users of that particular platform.
• The number of students in the class is limited to fifteen.
• Get the phone numbers of everyone in your class.
• There are good grounds because Europe is the most advanced continent in the fight against doping, the greatest number of world-class sporting events takes place here and because Europe has the greatest number of competitions between clubs of different sporting disciplines.
• What is appalling is not so much that the number of women in parliament is small but that the number of working-class women, female employees, women who are socially of low birth and women of modest income is played down.
• The products shall be grouped according to the classes of the Locarno classification, each group being preceded by the number of the class to which that group of products belongs and presented in the order of the classes and subclasses under that classification.
• The number and class of securities being offered by each of the selling security holders.
• Limits on the number of foreign children per class might raise the issue of indirect discrimination, but only under certain conditions.
• nature of relationship with applicant (e.g. number and class of shares or securities held);
• In the case of shares, the statement shall also specify the number and class of the shares in question and give a concise description of the rights attaching thereto.
• The number of cycles for each class of motor cycle is:
• It is worth noting that in many European countries the permitted number of pupils in a class is considerably lower than in the European Schools.
• As regards the specific goods and services involved, the search is done exclusively on the basis of the class numbers of the International Classification established by the Nice Agreement on the International Classification of Goods and Services.

Some examples from the web:

• It is also important that there has been no expansion in the number of classes indicating the energy consumption of individual products, as this preserves the clarity of the whole concept.
• The number of classes may need to be greater for fair value measurements categorised within Level 3 of the fair value hierarchy because those measurements have a greater degree of uncertainty and subjectivity.
• Will the funding cuts not lead to a reduction in the number of classes and teaching hours?
• Under the new legislation, the layout of the energy efficiency label will allow for up to three new energy classes, to reflect technological progress, but will still limit the total number of classes to seven.
• At the time of filing, you can indicate any number of classes, but only three are covered by the application fee. If you choose more than three, a fee is payable for each additional one.
• the total number of classes of life and non-life insurance for which authorisation is granted;
• In principle the total number of classes will be limited to seven, unless more classes are still populated.
• Mark or sign cited: The national figurative trade marks as well as non-registered wellknown trade marks used in the course of trade in the Community containing or consisting of the word element ITT for goods and services in a large number of Classes