EP 0372607 A3 19901003 - A SLIDING RULE FOR CONVERSION TABLES, ADDRESS DIRECTORIES AND SIMILAR REFERENCES, MADE OF CARDBOARD OR THE LIKE
Title (en)
A SLIDING RULE FOR CONVERSION TABLES, ADDRESS DIRECTORIES AND SIMILAR REFERENCES, MADE OF CARDBOARD OR THE LIKE
Publication
Application
Priority
IT 6810088 A 19881209
Abstract (en)
[origin: EP0372607A2] The sliding rule comprises a flat, window-bearing sheath of a stiff material, in which a sliding tablet of the same material is received, the sheath and the sliding tablet bearing correlated inscriptions or pictures. According to the invention, the sliding rule is made from a single blank of said stiff material, comprising a first and a second board (10, 12), of which at least one has windows, integrally joined and folded one upon the other and laterally bonded to form said sheath, and a third board (14) which is end-joined to said second board through an intermediate area (23), and is folded between said first and second board around a folding line (18) at the midline of said intermediate area, the intermediate area being removed for using the sliding rule, said third board acting as sliding tablet.
IPC 1-7
IPC 8 full level
G06G 1/06 (2006.01)
CPC (source: EP)
G06G 1/06 (2013.01)
Citation (search report)
- [X] US 3902656 A 19750902 - ROTHCHILD ALAN J
- [X] US 3025767 A 19620320 - RUFFALO JOHN B
- [X] US 4233768 A 19801118 - BROMBERG HOWARD M
- [Y] US 3711014 A 19730116 - TUCKER J
Designated contracting state (EPC)
DE ES FR GB
DOCDB simple family (publication)
EP 0372607 A2 19900613; EP 0372607 A3 19901003; IT 1223984 B 19900929; IT 8868100 A0 19881209
DOCDB simple family (application)
EP 89202934 A 19891120; IT 6810088 A 19881209