[Issued in looseleaf form. Changes effective through Feb. 1968.] Not sold separately; included in subscription to Manual of classification and patents, which is
Notes:
[Issued in looseleaf form. Changes effective through Feb. 1968.] Not sold separately; included in subscription to Manual of classification and patents, which is * For Sale by Superintendent of Documents. Paper, $11.00 (including basic manual, index, and revised pages for an indefinite period) $3.00 additional for foreign mailing. • Sent to Depository Libraries. Item 257
Availability:
* For Sale by Superintendent of Documents. Paper, $11.00 (including basic manual, index, and revised pages for an indefinite period) $3.00 additional for foreign mailing. • Sent to Depository Libraries. Item 257