Richard K. Macaulay
Engineering at Collingwood Ave, Dayton, OH
License number
Louisiana EI.0008668
Issued Date
Jan 1, 1900
Category
Civil Engineer
Address
Address
145 Collingwood Ave, Dayton, OH 45419
Professional information
Loudspeaker
US Patent:
D328178, Aug 15, 1989
Filed:
Apr 7, 1986
Appl. No.:
6/850885
Inventors:
Richard K. Macaulay - Dayton OH
Assignee:
Macaulay Acoustics, Inc. - Dayton OH
US Classification:
D14210
Loudspeaker
US Patent:
D328160, Aug 15, 1989
Filed:
Apr 7, 1986
Appl. No.:
6/850879
Inventors:
Richard K. Macaulay - Dayton OH
Assignee:
Macaulay Acoustics, Inc. - Dayton OH
US Classification:
D14210