[Issued in looseleaf form.] Not sold separately; included in subscription to Manual of classification and patents, which is * Paper, $8.50 (including basic manual, index, and revised pages for an indefinite period), $2.00 additional for foreign mailing.
Notes:
[Issued in looseleaf form.] Not sold separately; included in subscription to Manual of classification and patents, which is * Paper, $8.50 (including basic manual, index, and revised pages for an indefinite period), $2.00 additional for foreign mailing. • Sent to Depository Libraries. Item 257