J. Andrew Williams
General Contractor in Matthews, NC

License number
North Carolina 8413
Renew Date
Apr 12, 1995
Category
General Contractor
Type
Building
Address
Address
PO Box 187, Matthews, NC 28105
Phone
(704) 847-8897

Professional information

J. Williams Photo 1

Fireplace Heat Exchanger Device

US Patent:
D252041, Jun 5, 1979
Filed:
Aug 4, 1977
Appl. No.:
5/821780
Inventors:
Robert L. Williams - Matthews NC
Frank M. Williams - Matthews NC
J. Andrew Williams - Matthews NC
Assignee:
Energy Conserving Equipment, Inc. - Matthews NC
International Classification:
D2303, D0708
US Classification:
D23 94