If both the brand and product name are unknown, then you can use the open search to identify the product with reference to known features and characteristics. First select an area and then a category under which you would classify the piece of equipment. You now have the possibility of further limiting your search criteria by entering known features or characteristics like, for example, its colour. After you have confirmed the search criteria, all products matching the description appear on the right-hand side of the screen. Simply click on the product to access the appropriate <a href="hilfe_content7.php4#7">exploded-view diagram</a>.