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:
Nov. 06, 1990
Filed:
Aug. 07, 1989
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a photographic device including a camera body having at least one motor built therein for driving at least one of a film winding transmission system, a charging transmission system and another transmission system, and an accessory detachably mounted on the camera body and having an auxiliary motor built therein, a switching mechanism is arranged for switching over the transmission of power in response to the mounting of the accessory on the camera body so that at least one of the film winding transmission system, the charging transmission system and the other transmission system is not able to be connected to the motor built in the camera body, and the one transmission system not connected thereto is able to be driven by the auxiliary motor built in the accessory.