An automatic cell counter
1970
23 S
graph. Darst
Digital preservation by Technische Informationsbibliothek (TIB) / Leibniz-Informationszentrum Technik und Naturwissenschaften und Universitätsbibliothek
Book
English
NTRS | 1970
|NTIS | 1970
|Engineering Index Backfile | 1938
|Automatic wheel counter on Union Pacific
Engineering Index Backfile | 1934
Automatic traffic counter and signal control
Engineering Index Backfile | 1934