Inside <mask> information about a mask used is put into brackets. Several <mask> elements can be given (for the sake of readability one after the other).
<manufacturer>, <model>, <name>, <nextservicedate>, <notes>, <purchase>, <serialnumber>, <serviceinterval>
(see also <equipment>)
<equipment> <mask id="my_mask"> <name>clear sight</name> <manufacturer> <name>UW-Viewer</name> </manufacturer> <model>Sea-all</model> <!-- no serial number to find --> <purchase> <date> <year>1981</year><month>2</month><day>5</day><dayofweek>4</dayofweek> </date> <price currency="DM">20.00</price> <shop> <name>Dive Terminal</name> <address> <!-- address of shop --> </address> <contact> <!-- phone number, email address etc. --> </contact> <notes> <!-- additional remarks --> </notes> </shop> </purchase> <!-- no serviceinterval --> </mask> </equipment>