3883878

Information

• Patent Grant
• 3883878

• References
• Source

• Patent Number

  3,883,878

• Date Filed

  Not available

• Date Issued

  Tuesday, May 13, 1975
  49 years ago

• CPC

  • G08G1/01 - Detecting movement of traffic to be counted or controlled
  • C07J53/00 - Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by condensation with a carbocyclic rings or by formation of an additional ring by means of a direct link between two ring carbon atoms, including carboxyclic rings fused to the cyclopenta(a)hydrophenanthrene skeleton are included in this class
  • C07J75/00 - Processes for the preparation of steroids in general
  • G01D9/30 - there being a separate recording element for each variable
  • G01D18/00 - Testing or calibrating of apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
  • G07C3/12 - in graphical form

• US Classifications

  • 346 - Recorders