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:
Jun. 21, 1977
Filed:
Aug. 19, 1975
Applicant:
Inventor:
Juan M Del Castillo, Mexico City, MX;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10D / ;
U.S. Cl.
CPC ...
84317 ;
Abstract
Apparatus for exerting pressure on several strings of a stringed instrument simultaneously by operation of a pushbutton which transmits either hydraulically or pneumatically or by flexible cable the touch from a single finger, hence a single pushbutton, to several strings of a stringed instrument for such purposes as the playing of a chord.