Multiple depth selector mechanism
Multiple fluid swivel arrangement
Multiple victim rescue device
Multiple-serial-hydrofoil swim fins
Multipurpose and inflatable raft
Multipurpose aquatic flotation device
Multipurpose boat bucket
Multipurpose float
Multipurpose floatable blanket
Multipurpose flotation blanket
Multipurpose life preserver
Multipurpose recreational mat
Multipurpose water rescue apparatus