Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kalamazoo PLC
Original Assignee
Kalamazoo PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kalamazoo PLCfiledCriticalKalamazoo PLC
Priority to ES0056667UpriorityCriticalpatent/ES56667Y/en
Publication of ES56667UpublicationCriticalpatent/ES56667U/en
Application grantedgrantedCritical
Publication of ES56667YpublicationCriticalpatent/ES56667Y/en
New book model of changeable sheets, characterized in that it consists essentially of two rigid covers, joined by means of two tapes, the ends of which are fixed to a lid and the other ends are attached to a sliding device capable of allowing greater or lesser separation between the two covers, this separation being fixed according to the length of the tapes, by means of a clip operated by a spring that is fixed or slides at will by a plate attached to the lower cover of the book. (Machine-translation by Google Translate, not legally binding)
ES0056667U1956-10-181956-10-18
New model of changeable sheet book
ExpiredES56667Y
(en)