1. NKR security should never be an article of commerce either. 2. Historically, the chief articles of commerce were wood and grain for export. 3. Salt is an article of commerce , quite generally used from time immemorial. 4. Guns are both articles of commerce and articles that can be used to restrain commerce. 5. If blood becomes an article of commerce , donors may become cynical and stop giving. 6. After all, items produced by farmers and manufacturers were the primary articles of commerce at the time. 7. Bear in mind that brains and learning, like muscle and physical skill, are articles of commerce . 8. It is a common article of commerce and trade, of interest mainly to miners, smelters, and refiners. 9. It adopts a restrictive definition of contributory infringement that distinguishes between staple and nonstaple articles of commerce . . .. 10. He invented the dried-meal process, and Marsh's caloric dried meal was long an article of commerce .