Amprior
Canada
3
2013-06-20
The entities that hold a legal rights for patent applications filed by inventor Johnston Robert G.:
Robert G. Johnston from Amprior, CA has applied for patents for these inventions. The list has both pending applications and granted patents:
Enclosure System With Acoustic Element
#2 | 2010-12-23Swivel tweeter mechanism for a constant phase coaxial acoustic transducer
#3 | 2007-02-15Electrodynamic acoustic transducer
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