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:
Aug. 03, 1976
Filed:
Jan. 30, 1974
Applicant:
Inventor:
Koichi Sekiguchi, Asaka, JA;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 / ;
Abstract
A rotary dial device for a telephone set, in which an additional function of preventing a toll dialling is provided. In accordance with this invention, a contact is further attached to an usual dial to classify dial impulses so that when a number '1,' one of numbers '2' to '9,' and a number '0' are dialled, one, two and three pulses are produced respectively. The dialling function subsequent to the first dialling number '0' and the first and second dialling numbers '10' is effectively stopped by counting the classified pulses.
Sekiguchi, Koichi. (1976). Rotary dial device for a telephone set (U.S. Patent No. 3973083). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3973083
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile