The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is MSO. This MIC (MSO) stands for the company name Mini-sport Inc which is currently Out of Business. This boat manufacturer code has other company names (MSO sometimes goes by these name(s) if applicable: , , , or ). This could happen if the US Coast Guard reissued the MIC to a new company after the first went out of business.
This company (Mini-sport Inc) is owned by Ribard, L and is located at Po Box 230636 in Fair Haven state of Mi. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Mini-sport Inc has started making boats, yachts and other watercraft as of 7/20/1981 and went out of business on (10/11/1991) in the following country: USA.
More details at the US Coast Guard.
The US Coast guard provides this comment about this watercraft manufacturer: Bsc 72 Retd 911011.