Sample collecting impact bit Patent
Impact bit for cutting, collecting, and storing samples such as lunar rock cuttings
Peckham, V. A., Jr.↗
Engineering topics
Peckham, V. A., Jr.
Publications and source records attributed to Peckham, V. A., Jr..
Engineering topics
Publications and source records attributed to Peckham, V. A., Jr..
Impact bit for cutting, collecting, and storing samples such as lunar rock cuttings