Remove duplicates from PHP array but ignoring one parameter

I have an array comprised of PHP objects as such.

$objects[0] => $object->type => 'President'
               $object->name => 'Joe Blogs'
               $object->address => '123 Harry Street'

$objects[1] => $object->type => 'Secretary'
               $object->name => 'Joe Blogs'
               $object->address => '123 Harry Street'

$objects[2] => $object->type => 'Treasurer'
               $object->name => 'Jane Doe'
               $object->address => '456 Upton Street'

I would like to ignore the 'type' parameter and end up with

$objects[0] => $object->type => 'President'
               $object->name => 'Joe Blogs'
               $object->address => '123 Harry Street'

$objects[2] => $object->type => 'Treasurer'
               $object->name => 'Jane Doe'
               $object->address => '456 Upton Street'

I have tried a few difrent things but not sure how to ignore the type parameter