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Typical ten-inch (25 cm) student slide rule (Pickett N902-T simplex trig) A slide rule is a hand -operated mechanical calculator consisting of slidable rulers for evaluating mathematical operations such as multiplication, division, exponents, roots, logarithms, and trigonometry.
A variety of rulers A 2 m (6 ft 6 + 3 ⁄ 4 in) carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge, is an instrument used to make length measurements, whereby a user estimates a length by reading from a series of markings called "rules" along an edge of the ...
A Oscar Friedheim card cutting and scoring machine from 1889, capable of producing up to 100,000 visiting and business cards a day. Business cards are cards bearing business information about a company or individual. [1] [2] They are shared during formal introductions as a convenience and a memory aid.
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Corporate Credit Cards. Small Business Credit Cards. Availability. For larger, established businesses often with revenue of $1 million+. For small companies, sole proprietors, freelance workers ...
Small-business cards are typically designed to meet the needs of small businesses, while corporate credit cards are better suited to the needs of corporates with millions of dollars in annual revenue.
Cardboard boxes are industrially prefabricated boxes, primarily used for packaging goods and materials. Specialists in industry seldom use the term cardboard because it does not denote a specific material. [1] [2] The term cardboard may refer to a variety of heavy paper-like materials, including card stock, corrugated fiberboard, [3] and ...
An index card in a library card catalog.This type of cataloging has mostly been supplanted by computerization. A hand-written American index card A ruled index card. An index card (or record card in British English and system cards in Australian English) consists of card stock (heavy paper) cut to a standard size, used for recording and storing small amounts of discrete data.