42

Table 2.--SELECTED STATISTICS FOR SELECTED INDUSTRIES: 1950, 1949, AND 1947

(Figures in THOUSANDS of dollars. All industries (4-digit) which are shown on table 1 are also shown in this table.
Industry group totals are not tabulated for cost of materials and value of products because of the unknown and widely
varying amount of duplication contained in such totals. Such duplication arises from the use of the products of some
industries as materials by other industries.)

Standard error of 1950 and

1949 estimates (percent) for columns 2...

45

423,734 864,435 4 7

3564 Blowers and fans..

3565 Industrial trucks and tractors.. 3566 Power-transmission equipment.....

15

3567 Industrial furnaces and ovens...
3568 Mechanical stokers......
3569 General industrial machinery,

3571 Computing and related machines..

3572 Typewriters...

3576 Scales and balances...

3579 Office and store machines,n.e.c.

3581 Domestic laundry equipment.

3582 Laundry and dry cleaning

123224

3583 Sewing machines.

3584 Vacuum cleaners",

3585 Refrigeration machinery",

3586 Measuring and dispensing pumps".

For footnotes, see end of table.