Electrical and scientific apparatus Trademarks Filed in June 12, 1973
DS
Filed: June 12, 1973
ELECTRICAL FEEDTHRUS
Owned by: DOUGLAS ENGINEERING COMPANY, INC.
Serial Number: 72459999
DUCTORSEAL
Filed: June 12, 1973
ELECTRICAL FEEDTHRUS
Owned by: DOUGLAS ENGINEERING COMPANY, INC.
Serial Number: 72460000
K
Filed: June 12, 1973
MINIATURE MICROPHONES AND RECEIVERS WHICH BECOME COMPONENTS IN SOUND REPRODUCING APPARATUS, SUCH AS HEARING AIDS, SMALL…
Owned by: KNOWLES ELECTRONICS, LLC
Serial Number: 72460037
