A NEW SLIDE RULE
The slide rule is used by engineers to make easy and quick calculations. Now a new form of slide rule has been invented which makes it possible for a motor engineer to match a colour in a few seconds. This has become necessary on account of the accuracy with which people like repairs to the coachwork of their cars carried out.
The slide rule has 300 coloured tints, of different colours and by sliding these along with the instrument held against the car until an exact match is seen, a formula can be obtained for making the paint or varnish for the job. .
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Bibliographic details
Bay of Plenty Times, Volume LX, Issue 11085, 7 April 1933, Page 3
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107A NEW SLIDE RULE Bay of Plenty Times, Volume LX, Issue 11085, 7 April 1933, Page 3
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