Microencapsulated cholesteric liquid crystal temperature measuri

Milk requirement indicator

Mine roof warning indicator

Mine safety inspection indicator

Mishandling detector for packages

Missing card warning device

Mnemonic identification means

Modular marker

Modular marking system for athletic fields

Moisture gauge for a hanging potted plant

Moisture indicator for heat and moisture exchange devices

Moisture indicators for the absorbent capacity of a desiccant

Mono-disc rotatory medication reminder

Mono-ringed rotatory medication reminder

Motion reflector

Motor vehicle metric conversion kit

Motor vehicle with recesses for carrying warning indicators

Motorized boat-mounted signaling device for water skiers

Moulding having a decorative and/or protective face

Mount for a flag, display and the like