Mail box lock protector

Mailbox locks, mailbox locking systems, and locking mailboxes

Manipulation assistance device and method

Manipulation proof combination lock

Manual balanced door

Manual control device for opening a vehicle door

Manual disconnect apparatus and method

Manual lift gate system

Manually controlled pavered apparatus for directing the...

Manually operable sash lift for motorized double hung window

Manually operated electrically interlocked door lock keeper

Manually releasable coupling device for connecting an...

Manually unlocking device of electric lock

Marine door lockset

Mass transit vehicle door control apparatus

Maximum security lock bolt

Maximum-security lock

Means and apparatus for collegial identification of persons...

Means for closing doors for elevator shafts

Means for fixing a box on the faceplate of a door locking...