Work Files Saved Searches
   My Account                                                  Search:   Quick/Number   Boolean   Advanced       Help   


 The Delphion Integrated View: INPADOC Record

  Buy Now:   Buy PDF- 5pp  PDF  |   File History  |   Other choices   
  Tools:  Citation Link  |  Add to Work File:    
  View:  Full Record   |  Jump to: 
 
 Email this to a friend  Email this to a friend 
       
Title: US3937939: Single-hand digital calculator
[ Derwent Title ]


Country:
Kind:
US United States of America
A PATENT [FROM BEGIN UNTIL END 2000] or PATENT ISSUED AFTER 1ST PUB. WITHIN THE TVPP i

View Images High
Resolution

 Low
 Resolution

 
5 pages

 
Inventor: FRENKEL MARVIN A;

Assignee: FRENKEL MARVIN A
 News, Profiles, Stocks and More about this company

Published / Filed: 1976-02-10 / 1974-01-07

Application Number: US1974000431499

IPC Code: Advanced: B43K 29/093; G06F 15/02; H01H 13/84;
Core: B43K 29/00; H01H 13/70; more...

ECLA Code: B43K29/093; G06F15/02B; H01H13/84;

U.S. Class: 235/156;

Priority Number:
1974-01-07  US1974000431499

Abstract:     An electronic digital calculator, the calculator being in the form of an elongated tubular body having a size and shape similar to a pen or pencil and having a plurality of input valve setting keys and function keys carried on its surface as well as illuminable "read-out", or display, screen. The value setting keys and the function keys are arranged on the surface of the tubular body such that the calculator can be used while held in one hand of the user.

       
Family:
Buy
PDF
PublicationPub. DateFiled   Assignee   Title
Buy PDF - 5pp US3937939 1976-02-10  1974-01-07    Single-hand digital calculator
  1 family members shown above     - Based on data when this patent issued.


Forward References: Show 20 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (20)   |   Backward references (0)   |   Citation Link

       
Other Abstract Info: None

Inquire Regarding Licensing

Powered by Verity


Plaques from Patent Awards      Gallery of Obscure PatentsNominate this for the Gallery...

Thomson Reuters Copyright © 1997-2013 Thomson Reuters 
Subscriptions  |  Web Seminars  |  Privacy  |  Terms & Conditions  |  Site Map  |  Contact Us  |  Help