Chapter 6: Upkeep, Preventive & Corrective Maintenance
The Spirometry Source
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SDI Diagnostics, Inc., as the manufacturer, must provide
written authorization, for at least the guarantee period,
for the corresponding technical personnel to carry out
said maintenance and will not be held liable under any
circumstances for any damage, malfunction, etc. that
may arise as a result of defective maintenance by people
not employed by SDI.