BRIEF-Kolen receives patent
* Says it received China patent on March 24, for photographic lens optical system
March 15 MGC Pharmaceuticals Ltd
* Asx alert-trading halt-mxc.ax
* Seeks trading halt pending material announcement in relation to a capital raising Source text for Eikon: Further company coverage:
WASHINGTON, March 23 U.S. President Donald Trump warned House Republican lawmakers that he will leave Obamacare in place and move on to tax reform if they do not get behind new healthcare legislation and support it in a vote on Friday.