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Document 
Document Title 

3717298 
SLIDE RULE FOR PAYROLL USE
The longitudinally grooved calibrated stationary part has a slidable calibrated ruler disposed therein that is marked off at one end for a halfhour or a 1hour lunch period depending on the... 

3711014 
PERSONAL PORTFOLIO COMPUTER
A personal portfolio computer having a primary utility as a record keeping and stock value calculating device is generally constructed in the form of an envelope with rectangularly shaped... 

3699313 
SLIDE RULE WITH OPERATIONAL GUIDANCE AND DECIMAL POINT LOCATION MEANS
A logarithmic scale slide rule having means for readily determining operational direction and decimal location, comprising a system of oppositely facing brackets enclosing each 1 to 9.9999 scale... 

3668782 
SLIDE RULER TO ADJUST LENGTH OF TYPEWRITTEN LINE
A slide ruler is provided to determine how draft copy should be marked in order that the draft might be recopied with spaces added or taken away as needed in order that each line in the final copy... 

3652831 
CALCULATING DEVICE FOR ESTIMATING TURBINE STEAM RATES
A slide ruletype calculating device for estimating steam consumption in single curtis stage steam turbines. The device includes a casing having a steam rate scale, a slide member movable endwise... 

3643070 
SLIDE RULES INCORPORATING MAGNETIC ELEMENTS
Slide rules constructed predominantly of nonmagnetic materials such as synthetic resins or light alloys, preferably having sliding surfaces of or faced with a synthetic resin or other material of... 

3635396 
SLIDING PARALLEL RULE
A parallel rule includes an elongated body and an elongated arm with a crosshead which is slidingly inserted into a longitudinally extending channel in the body for longitudinal movement of the... 

3604621 
IMPROVED SLIDE RULE ARRANGEMENT
An improved slide rule arrangement having greater accuracy in reading the slide rule and information storage capability on the cursor of the slide rule as well as means for improving the ease with... 

3598414 
METHOD AND APPARATUS FOR DETERMINING AND STUDYING PHILOSOPHICAL AND ORACLE RESPONSES
A first group of symbols, preferably six, are individually visually indicated in order, each of said symbols being taken from a predetermined plurality of symbols, preferably two basic symbols... 

3572583 
SLIDE RULE FOR MAKING PATTERNS
This disclosure provides a method and a tool for simplifying the art of pattern making while simultaneously increasing the accuracy of the patterns made. One embodiment of this tool is a slide... 

3565335 
DEVICE FOR CALCULATING QUANTITIVE COMPOSITION OF A SUBSTANCE FROM AN XRAY SPECTROSCOPIC ANALYSIS
Two graduated scales, relatively positionable, for making analogue computations of the quantity of a known material in a qualitatively known and quantitatively unknown composition. One scale is... 

3539781 
NUMERICAL SEQUENCE COMPUTER


3522655 
APPARATUS AND METHOD FOR DETERMINING THE CORRELATION COEFFICIENT OF TWO GRAPHICAL TRACES


3512709 
AMORTIZATION PAYMENTS COMPUTER


3507045 
RULE WITH INTERCHANGEABLE SCALES


3495772 
ADDING AND SUBTRACTING DEVICE


D223859 
Title is not available


3712974 
COMPUTATIONAL HEXADECIMAL SLIDE RULE


3716186 
HEXADECIMAL SLIDE RULE


D221802 
Title is not available


3621750 
SLIDE RULE CHORD SELECTOR


D223683 
Title is not available


3485447 
SLIDE RULE


3473731 
SPEED REGISTER


3468478 
PRECISION SLIDE RULE COMPUTING MECHANISM


3467307 
SCALING AND CALCULATING INSTRUMENT


3461572 
INSTRUCTIONAL DEVICE


3443749 
SLIDE RULE


3441208 
SLIDE RULE


3406900 
Powered slide rule assembly


3405868 
Slide rule


3402482 
Mathematics teaching device


3397838 
Comparative value device


3387777 
True price indicator


3386653 
Check number evaluating device


3372869 
Calculator


3335948 
Wheel alignment computer


3323718 
Computer for decimal location


3294318 
Proportional scale slide rule


3286920 
Slide rule


3276684 
Fish weight computer


3276683 
Calibration device


3275235 
Comparison calculator


3266722 
Guard band indicator


3263919 
Average calculator


3260453 
Slide rule


3257075 
Double length slide rules


3232531 
Calculator


3232532 
Calculating machines


3229905 
Ruler for making navigational computations
