Disclosures on : new syntheses of perfluorostyrene and other highly fluorinated derivatives ; temperature-, radiation-, and vacuum-resistant magnetic tape ; conductometric titration cell ; mill work positioner ; process for fabricating superconducting microbridges ; apparatus for displaying average wind vane or other shaft position ; document numbering machine responsive to a staple in a print area for printing alternate area /
- Publication date
- Publisher
- Washington, D.C. : U.S. Dept. of Commerce, National Bureau of Standards,