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:
Apr. 08, 1980
Filed:
Aug. 01, 1977
Applicant:
Inventors:
Mituo Inamasu, Yokohama, JP;
Kazuo Takehara, Kyoto, JP;
Yoshio Sakata, Tokyo, JP;
Hiroshi Yoshikawa, Fujisawa, JP;
Satoshi Matsumoto, Ashigarakami, JP;
Akihiro Kawakami, Yokohama, JP;
Haruyuki Nakabayashi, Yokohama, JP;
Yosihiro Takeda, Kawasaki, JP;
Assignees:
Hitachi, Ltd., both of, JP;
Nippon Telegraph and Telephone Public Corporation, both of, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q / ; H04Q / ; H02B / ;
U.S. Cl.
CPC ...
179 98 ; 312201 ; 312223 ; 361428 ;
Abstract
A transportable telephone exchange apparatus which includes small capacity telephone exchange facilities which are divided into a plurality of containers for transportation to an installation site by boat or by vehicle, has an improved frame packing density within the frame and is constructed to facilitate maintenance.