The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 1980
Filed:
Dec. 28, 1978
Applicant:
Inventors:
Bjarne S Hansen, Fredensborg, DK;
Robert Gudmandsen, Taastrup, DK;
Assignee:
Ortofon Manufacturing A/S, Valby, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
1791 / ; 1791 / ;
Abstract
In a moving-coil pickup having a flat, wound armature which is fixed to a stylus arm and is movably mounted in a magnet field produced by one or more permanent magnets, said magnet or magnets is/are so arranged as to define a relatively short tube within which the armature is mounted.
Quick Actions:
Hansen, Bjarne. (1980). Compact moving-coil pickup of low weight and high quality (U.S. Patent No. 4237349). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4237349
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile