Frank Mccrady Williams
Architects in Matthews, NC

License number
North Carolina 1611
Category
Architecture
Address
Address
PO Box 187, Matthews, NC 28106
LicenseFiles verified this license of Jan 23, 2017 at the North Carolina Board of Architecture.

Professional information

Frank 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

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