TREA

Independent date indicators activated by hand or by clockwork

Follow

Industry

  • CPC
  • G04B19/2571
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

GPHYSICS G04Horology G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS G04B19/00Indicating the time by visual means

Current Industry

G04B19/2571Independent date indicators activated by hand or by clockwork
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    2257947
    • Patent number 2,257,947
    • Issue date Oct 7, 1941
    • G04 - HOROLOGY
  • Information Patent Grant

    1903430
    • Patent number 1,903,430
    • Issue date Apr 4, 1933
    • G04 - HOROLOGY
  • Information Patent Grant

    1866071
    • Patent number 1,866,071
    • Issue date Jul 5, 1932
    • G04 - HOROLOGY
  • Information Patent Grant

    1622913
    • Patent number 1,622,913
    • Issue date Mar 29, 1927
    • G04 - HOROLOGY
  • Information Patent Grant

    230134
    • Patent number 230,134
    • Issue date Jul 20, 1880
    • G04 - HOROLOGY
  • Information Patent Grant

    93088
    • Patent number 93,088
    • Issue date Jul 27, 1869
    • G04 - HOROLOGY

Patents Applicationslast 30 patents